thank you wyvern! I sometimes have to get to Leicester, Sheffield and Nottingham, about 6-8 times a year, and you're completely correct of course, it is the St Pancras stop.
The static timetable is here:
http://www.firstcapitalconnect.co.uk...TL1_SX_OUT.pdf
and it clearly shows that this service does not stop at London Bridge at the time I am nearly 98% certain I took it (a few minutes after 8).
and yes, there are no ticket restrictions.
again, thank you for replying!