Looks like it's the same today on Reading services - just the one pair of 455s, plus two pairs of 458/5s (3 pairs in the AM peak).
Unlike yesterday, today the 2C07 diagram is listed on journeycheck as 10v8 and it appears that this is due to a shortage of 455s. Perhaps SWR are fortunate in that the delay in delivering 458526 to Widnes, and hence its delayed completion, means that the next 458/5 to leave SWR (which should have been today in the normal sequence) has not occurred. Yesterday, all 16 458/5 still on SWRs books were in service at some point in the day, and that could not have happened if a unit was being delivered to Widnes.
05:50 London Waterloo to Reading due 07:11
07:39 Reading to London Waterloo due 09:07
09:20 London Waterloo to Reading due 10:43
11:09 Reading to London Waterloo due 12:35
12:50 London Waterloo to Reading due 14:13
14:39 Reading to London Waterloo due 16:07
16:20 London Waterloo to Reading due 17:42
18:09 Reading to London Waterloo due 19:34
19:50 London Waterloo to Reading due 21:13
21:39 Reading to London Waterloo due 23:07
23:30 London Waterloo to Kingston due 00:15
Will be formed of 10 coaches instead of 8. (458533 + 458536)
07:09 London Waterloo to Guildford due 08:27
08:42 Guildford to London Waterloo due 09:57
10:06 London Waterloo to Hampton Court due 10:42
10:54 Hampton Court to London Waterloo due 11:31
11:54 London Waterloo to Guildford due 13:02
13:45 Guildford to London Waterloo due 14:55
15:06 London Waterloo to Hampton Court due 15:42
15:54 Hampton Court to London Waterloo due 16:31
16:54 London Waterloo to Guildford due 18:05
18:45 Guildford to London Waterloo due 19:55
20:06 London Waterloo to Hampton Court due 20:42
20:54 Hampton Court to London Waterloo due 21:31
21:54 London Waterloo to Guildford due 23:02
Will be formed of 4 coaches instead of 8. (455750)
07:12 London Waterloo to Shepperton due 08:06
08:11 Shepperton to London Waterloo due 09:07
09:12 London Waterloo to Shepperton due 10:06
10:11 Shepperton to London Waterloo due 11:04
11:12 London Waterloo to Shepperton due 12:05
12:11 Shepperton to London Waterloo due 13:04
13:12 London Waterloo to Shepperton due 14:06
14:11 Shepperton to London Waterloo due 15:04
15:12 London Waterloo to Shepperton due 16:06
16:11 Shepperton to London Waterloo due 17:04
17:12 London Waterloo to Shepperton due 18:05
18:11 Shepperton to London Waterloo due 19:04
19:12 London Waterloo to Shepperton due 20:05
20:11 Shepperton to London Waterloo due 21:04
22:11 Shepperton to London Waterloo due 23:06
23:13 London Waterloo to Shepperton due 00:06
Will be formed of 4 coaches instead of 8. (455707)