<font face="Verdana, Arial, Helvetica, sans-serif" size="2">Originally posted by terenz:
Minimum 3 hr transfer time.</font>
Even that amount of time can be hairy. The first time I did it most of the busses were already booked and we had to wait about 45 mins at LHR before being allowed to board a bus to LGW. Then our bus got stuck in traffic.
I think the LGW-LHR transfer should be avoided whenever possible.