I ran my Tekno for the first time a week ago.... WoooHooo what a blast.
Not sure why people are having problems? Stock set-up worked ok, rear end was a little loose. The truck would turn on a dime.. big difference from scte. I had add some steering expo on my radio to tame the beast.
Jumped just great, I know just to keep a little throttle going due to the nature of a the short course. No issues with ride height. I built my shocks with the vented style and kept about 15mm of shaft out as recommended.
I installed pink springs f/r and the 6x1.5 pistons this week. I am looking forward to racing tomorrow night and see how it handles. The pink springs are keeping my ride height up a mm or two. As noted I expect them to break in and work just fine.