The sleds that were running 121mph had .920 tracks with picks, don't know how long, but were hooking up! Also had gearing and clutching done. And probably other things they wouldn't show.
The stocker GT's were still running .920 tracks with agressive picks, but were geared, and clutched mildly, or not at all. These ran thru the gun at 116.3-116.7mph
Bob G ran a guys GT thru which was all bone stock, stock track with picks, and ran 114.6, but only had 7 miles on it.
The 2 sleds that had 1 with reverse, and 1 without reverse, both had .920 tracks with picks, clutching and gearing. These 2 sleds were within 1 mph I do believe.
So to take a stock 136 Attak, with the exception of clutching, thru the radar at 116.7mph, that is a huge gain, and shows it was faster than the stocker GT, and just as fast as the other stocker GT's with gearing, mild clutching, and .920 tracks.