so I tried B... and it was awesome!! looks great, feels great. managed 2:28 after a handful of laps so much more time is there to be gained.
The mean average time would need to get down to about 2:22 to extend to 19 laps, lets see what we can do.
Where will we be racing in round 7?, Div 4 looks like it may not be decided til the last round and I would like to know what I'll be dealing with.