| Is lap timing an an insurance thing. Do CSS still lap time on their courses, they did years ago and you got a printout after the event.
I can see why you don't want peeps chasing a lap time on track day but it can be usefull to know if you are making progress with your riding or bike changes.
A maniac who chases a lap time with no respect for others on track who haven't got the same metality be it timed by lap timer, mate on the pitwall with a watch, phone or egg timer or even an on board camera is probably still gonna be riding like a nutter even if he/she didn't have a lap timer on the bike?
T100 or T200 are both good reliable options, just make sure you take a spare battery.
Ray | 
Hybrid Mode
