Pudnucker,
I also made sure I was speaking to a radar service the whole way past it (Bristol) for just in case I ran off track
Beware, LARS won't protect you from flying into CAS, hills, TRA, etc and neither will they be aware that you are moving off your intended track. Radar maps don't have some features, even including some ATZs, never mind transient TRAs. The onus is squarely on you to know where you are and negotiate clearances enroute.