I know i'll probably get so many opinions here but i'll give it a shot. i'm debating on going SD or regular tune. This is gonna be for my 98 chevy truck with a lq4 and 4l65e. It will mainly be a daily driver and tow truck for my horses. I was wondering what you would recommend, I was thinking sd for the simplicity but not sure how much weather actually effects the tune. I live in southern georgia. I really need help cause i'm reworking my harness and need to know if i'm gonna take out the wires or not. Thanks.