I have raced a few times over the years with Ray, the Canadian who started CAP back probably 10 years ago now. He campaigns a 65-66 ish Dart that runs mid 9's. Seen him at US131 a few times and chatted with him.
Real nice guy, and sold a good product, especially if your looking for more room.
I think there was a story a few years back about bad welds or something on one of the K members. Not cool, but not the norm.
Nobody is perfect but I have seen them in use and they seem to work well and be safe


69 Dart GTS A4 Silver All steel, flat factory hood, 3360race weight
418 BPE factory replacement headed stroker, 565 lift solid cam
Best so far, low 10.30’s 1/4
1.41 best 60 foot
6.56 at 104.17