I've been reading this thread today and just realized that i have a 90 minute connection from a UA flight into LHR onto a BD flight up to GLA. This is no big deal now since the flight isn't until next autumn (early booking, got all my UA segments upgraded, I'm a little anal about booking ASAP).
Anyhow, should this be tight timewise? I've always complained when I flew BA because the connecting time was usually 4 -5 hours , but now I'm wondering, is 90 minutes pushing it?