MAG buy STN
LGS
I take your earlier point, but trains into London are every 15 mins so hardly infrequent. And also at peak times at LHR you can land, hold for a stand, and in the mean time at STN you could be half way into London by the time LHR pax have reclaimed their baggage. STN connecting flights into Europe let them down, unless you want ezy or FR, you don't have much choice