My driver this morning had most definitely selected boost mode! But this evenings driver had not. And yet despite that, we recouped 10 mins of a 12 minute deficit from Crewe, arriving Euston 2.5 late - having caught up what looks to have been some sleeper stock that may have been running late ahead of us. Recovery time and pathing allowances accounted for pretty much all of the regained time - showing that the point to point timings are pretty spot on!
Now here's a puzzle (for me, anyway).
Sometimes, I've been on a Pendo that has met with delay, and the TM has made announcements about revised arrival times, with lateness recovered incrementally at each forward calling point. On a quiet train, I asked the TM for a revised eta (a connection at Rugby would be nice) and she looked at a schedule on her 'phone which showed this situation (of steady recovery of lateness to a -5 at Euston). In reality, the trains always
lost time, as you'd expect, being knocked by on-time trains at junctions and stopping services being given preference. But it begs the question; on what basis is this revised schedule calculated? Does it assume use of 'boost'?
Even without checks, a late running Pendo seems unable to recover lost time normally - as you point out the p - p times seem to be optimal.