Quick Question

What is the differece between low throttle , high throttle, and wide open throttle (im assuming thats what wot stands for????)

I was reading the S-AFC string and I think it was computerwiz who was saying that he programed the safc to not kick in untill hes in high throttle

sorry I know its probaly a stupid question but hey im a dumbass

Oh 1 more thing how much does the apexi afc cost? I was looking on there site and there wasnt a price listed

Jason