I know the feeling. It is hard to tell where someone is coming from reading postings. You try to be brief which leaves so much open for interpretation or you end up writing a long winded explanation with an exception list a mile long.

I was strictly speaking of drag racing. For trail riding and the track, I definitely think the 12 tooth is better. Actually, I prefer 13/43 but that is because I think a 12 tooth is harder on the engine, chain, and front sprocket. Now that I opened the airbox, changed the air filter, added a GYTR carbon fiber tip, and rejetted, I am back to 13/40 gearing.

 

Yep, I would'nt recommend the 14 tooth front sprocket for anything but dragging.