Nicely put Ryu, very informative. I believe that Jason's situation lends itself to these issues mainly due to the fact that his tuning is done via a piggyback instead of a standalone EMS which further limits the abilities of the stock ECU to properly compensate for varying conditions. Not saying you can't have a solid tune with piggyback, I'm just saying they're less capable of that fine tuning that makes driving a highly modified car much more "turn key". (in my experience)
You try and tell kids these things, but sometimes they just need to fall down and learn on their own :tongue: