I have been here for about 2 months now, picking my way through the smaller / easier books. No bad experiences so far. Small hiccups include betfair indicating bet not matched, but infact had, (on two occasions!), also using high odds to bust out, but winning at bookies and having to play through the wr with a small float.
All good fun and highly addictive. Is there an M-B'ers Anonymous?
So far "keeping it simple", seems to work for me, and a bit of patience. I will grow my ambitions with my float.

Big thanks to all who have answered my questions, and to TGT for my fivers.

Keep up the good work.