I used the document linked from
here
However having had another look at it they seem to show the S8 stock as one unit. But all other classes of units are split. I naturally did the same thing with the S8 (also the fact I have seen two of them split during the testing of the S7) means I will look at them as two units. Maybe they never will be split but if they had four half units out of service surely they would make one good complete unit out of the two good halves?
Fair comment, indeed my moves on the S stock go something like this:
21389+21390 Farringdon-Edgware Road (Circle)
I didn't realise to begin with they were technically half sets with the S8s and partly 4-car S7s and partly 3-car S7s. However, in the above example, I still only count it as one train. That just makes sense to me, and in the above format it does allow for any chance of having mixed sets in the future and accurately recording things.
Sorry if it sounded like I was complaining or owt previously.
--- old post above --- --- new post below ---
Having worked a lot of overtime recently, and more to come soon (got an 0530 journey start in a couple of weeks I'm not looking forward to), I can understand that very well. No rush, I'm in no hurry
Good stuff

Now I've got time, I need to find your original post to answer it
To those of you that have made a significant dent in rolling stock fleets that are outside your local area - how many full days have you spent trying to track them down? Genuinely curious about how much people are putting to attain these impressive goals.
I haven't gone through every single trip to find out the 100% definitive answer, although I've gone through 2012, 2013 and 2014 thus far which will have to suffice (prior to 2012, my moves are not overly accurately recorded). It's also worth pointing out that my local area has been three very different areas. I've lived in Swansea, Minehead, rural Herefordshire and Trowbridge since I first got properly into the hobby way back in autumn 2003. So I managed to clear an awful lot of HSTs and 158s when I was in Swansea, not much at all when living in Minehead, more HSTs, 150s, 153s, 158s, 159s and more when in Trowbridge and, now I'm back in rural Herefordshire where I grew up, I've spent a massive amount of time and money in the pursuit of getting everything. It's also where in each of 2012/13/14 that I've tried to get away from the hobby and be a 'norm', but that lot has been documented well over the years. So I've got a lot of big gaps in my travels in the 2012-current period, all of the time wasted being 'normal' is seriously regretted! Anyway, let's actually answer this question of yours!
Annoyingly RailMiles appears to be having a moment right now so I can't refer back to that (my sub must have expired without my remembering to sort it out), so it's back to the moves book! So, let's see, trips away from my local patch...48 days away (some of which were post-work evening trips over multiple sectors for positioning purposes, or end-of-trip moves after a flight home) so in terms of full days I'd say probably 40 full days out not on my home turf. 14 of them were on a 14-day ALR
2013, 47 days away all in but some of these were on a 'normal' holiday in Ireland with no trains involved. Same as 2012, a few days were merely positioning moves to get to the main event or moves coming home from an epic trip like the Benelux Interrail. So let's call it 36 full days away and not on my home turf.
2014, well this is awkward as I've only had 7 full days out so far this year that weren't in my area. The other 4 days were in South Wales and the West Midlands. Awkward because South Wales and the West Midlands are both 'home turf' for me!
So I suppose the quickest and easiest answer to you would be that I've had, in the last 2 and a bit years, 83 full days away from my local patch. Cost me a lot of money, a lot of time but it's been mostly thoroughly enjoyable and I really wouldn't want to give it up again now!
--- old post above --- --- new post below ---
TEW is correct - it's a long process, even if, when you get down to your last few, you have a friend with access to a machine. Bearing in mind the 156s have been around since the late 1980s, there's still one that I've yet to have...
Having said that, sometimes you can walk into your last member of a particular type - a year or so I was up in the Glasgow area, caught a train to Springburn and found my last 320 sat there. I know a few people who have cleared their operational multiple units (although they no doubt need a few with the new stuff that's recently appeared).
Clearing out any class, even for sight, can take forever. It took me a long time to find my last 168/0s, and thankfully Twitter came to the rescue! It has done on other occasions as well, so has proved incredibly useful on my trips away.
I've also happened to fall into place for my last two 221s in the same day, on my home turf too, by chance last year on a WMDR. Went over after arriving into Birmingham to see what was on the 1420 up to Glasgow, happened to be 221111 which was a nice surprise as it took me to just 221108 to get. En-route to Wolverhampton, a pair of 221s passes going to Birmingham so I head back to New Street nice and quickly to see what was on the 1520 off New Street. Sure enough, 221108 was on it so I jumped on for the trip to Crewe and celebrated with a coffee at Crewe! After all the times I went hunting the things down they just happened to be out without being expected!
Sure it's happened like that before elsewhere, hopefully it will with my last ATW 150 eventually!