The other thing about that dispute with the miners was, the NUM got split early on, when Notts miners kept working during the strike, due to them not getting a ballot, and the split in the NUM, which led to the creation of the UDM, was what helped the government.
On Southern, the two unions involved, the RMT and ASLEF, have a sort of split, in that ASLEF, whilst still in dispute with Southern, have put offers to their members, which have been rejected, but not by big margins, and haven't called anymore strikes. The RMT have called strikes, and the most recent one, apparently, had little disruption.
Now, on Merseyrail, some ASLEF members have refused to cross picket lines manned by RMT members. What the RMT needs to hope for is either ASLEF ballots its members, and/or ASLEF members to continue to refuse to cross picket lines. If ASLEF members do start crossing picket lines, or rather more of them do, then the two unions could find themselves not working together, i.e. not in unison. This could lead to, on strike days, more trains running than has been the case at present.
One other thing, I think it's already been mentioned about the Open golf at Birkdale. I think we can all accept that's a key target, and no doubt the RMT will have other strike days. I'm just wondering if Merseyrail management have any tricks up their sleeve though.