thing,
Sywell Cambridge Leicester Sywell is never 150 miles is it?
Edit: Just checked on Skydemon, it's 107 miles. Bit odd.
I flew the same route doing my QXC - the leg from Leicester to Sywell is normally via DTY, which still gives only about 127 NM. Probs another via in there somewhere
edit: I lied, mine was Tollerton, not Leicester!