Nice one Pie,
Re the difficulty, with the AI on Medium and the physics on semi pro or pro... that will be challenging enough. Even with the Physics on standard it's still pretty easy to loose control of the bike if you just hammer it. I'm having to bleed the power on and not throw the bike around and do my best to play smooth.. ie just like the real thing.
Had a monumental online battle with someone y'day. 3 corners exchanging places, side by side, not taking each other off. Me squeaking by inside a tight corner he probably thought he was tight on already... man if only the ps4 had the Xb1 "record that " ability, i'd be flooding this forum with epic racing moments. ( note i know the pS4 has the share button but i don't have a facebook or twitter account to record my gameplay moments to )