First Off there is NO such thing as wet and A lot of Grip , it's one or the other, wet Lacking grip , Or came around gained moisture still apparent but track then has 75 % of Max grip potential , which is a lot more than wet Lacking Grip .
Burris 33's are the most chemical sensitive tire I know off , And If you wipe anything when not needed , Or wipe to the Extreme on Aggressive prep like Goat when only a Medium base prep is needed , you will experience the dreaded Chemical slide and when way over done the Kart is Undrivable , For the Heat you say you left the kart alone , based on hot lap results Good move , then based on noticing change in the track you wipe another coat of Goat , there's where you went wrong, to Aggressive for then condition and Results Chemical slide most likely , so had you only wipe one coat of say hard track , OR re finished the tires and sprayed with SD 20 only pulled some prep and oils to the surface you might have been pretty good again , Remember that prep Groove was there because of everyone else wiping so much So your tires in driving through it had to pick some of that prep onto your tires , So with it being a True Champ Buggy A Fresh cut 33 NEVER prepped might have ended up hooking up once the tires picked up some off the prep groove , and If the had that would have been the fastest , Now where you went wrong in the Feature was miss reading the track condition and Adding cross , not that adding one washer effected hardly anything with set up , NO reason to do so WHY you ask cross is a fine tune adjustment in the first place and should be probably the LAST adjustment you should make to the kart , Should have fixed it with tires only , But once you went to a chassis adjustment Camber adjustments , move weight to raise or lower left , would be LONG before Cross , and If and when you do adjust cross NEVER only move 1 washer Always 2 or more , " UNLESS your a PRO and really got it figured out " WHY you ask again every chassis has a dead spot of atleast 2 % some even more, where making an adjustment does absolutely NOTHING that will show up in performance weather Negative or Positive, and you must know where that number is some may be 60 % to 62 % some maybe 58 % to 60 % some may be on the higher side 64 % to 66 % , all ya some may be even NO difference seen in 3 % + to really make it more difficult , Track condition think about if for the features track condition almost always changes a good bit at any track by the features , and in most cases atleast little more grip, and for sure Drier , So an Aggressive prep like Goat not going to hook up with any tire, since it was Burris 33s Chemical Slide Again, Again since it was a champ the right NEVER prepped 33 would have mostly hooked up , Now for the Heat it could have been the complete opposite end of the spectrum and you were not wiped up near enough, but since they were 33s I highly doubt it .
Hope this helps shed some light and makes a difference going forward.
Good Luck !!
