I didn't realise they had either. Looking at the DP times I'd say that with one or two exceptions the times for a 23:30 round are broadly similar, usually plus or minus a minute or two. The time for going up Skiddaw is different by 16 minutes (slower on the DP version) but the real oddity are the times from High Raise to Sergeant Man to Thunacar Knott, 2 & 5 minutes respectfully. I don't know anyone who can run directly from HR to TK in 7 minutes let alone going via SM. For instance, Billy Bland took 6 & 10 minutes on his record round.

One thing that neither calculator can take account for is having a bad patch which can affect any contender at any point. Ultimately they are just guidelines rather than rigid guides.