Hi Matt, this thread is not 100% dead, more kinda 'sleeping' I'm intending on getting to the track over the summer for some runs, so will post here as/when.
But the good news is that I'm scaler nutty and happy to meet up to trail round this area some time. Also checkout http://www.scale4x4rc.org/forums/forumdisplay.php?f=127 where you will find the London Scale Trail Runners ('LSTR'), who meet on the last Sunday of every month for a 'competition' day (its more about having fun, no prizes etc.). LSTR meet at various locations around the M25 and IMHO its a fun day out - Get yourself signed up on scale4x4rc.org and say hello.
Aaaand there is the RRCI Scale Nationals 2015 at the end of this month of you fancy: https://www.facebook.com/events/1594621657433914/ this is an epic scale & trail fest
Btw, which SCX10 did you get?