Anyone with a 2013 SHO go from stage 4 to 4+? How did you like it? I updated from stage 4 - Lv4 to Lv6 which is suppose to be an improvement. Lv6 is definitely smoother, but I feel like it might be a tad slower. I think the shifting is too slow or soft. I like firm quick shifting, but not slamming or clunking for daily driving. I didn't know if 4+ or the newer Vx1 is even suitable for daily driving. I figured I'd ask here if that's alright. Thanks.