have not missed a beat since (been over 1 1/2 years). If they were out of adjustment then the problem shouldn't fix itself like that. The instructions that came with the clutch said to break it in for 250 miles (I think). Immediately after the install, I tested the theory a couple of times and from a roll on in fourth or fifth gears, it slipped. A couple of hundred miles later and ever since, no problems. JWT heavy duty clutch and JUN chromoly flywheel, resurfaced.