Kettlebell Clean and Jerk

I think this depends largely on the weight, and reps for which you are doing the exercise. When it comes to clean and jerk for Girevoy Sport (Kettlebell Sport) where you are repeating the movement for up to 10 minutes (with 64kg - 2x32kg kettlebells at the highest level) the repeated jerk form the dip under the weight becomes crucial to lasting the distance. A super heavyweight seeking Master of Sport rank would be required (in short cycle - a single clean and repeated jerk from the chest) to lift the 64kg 78 times in 10 minutes (without setting the kettlebells down) and in long cycle (re-cleaning the bells to the chest for each rep) 69 times - again without the kettlebells touching the ground. Speaking from experience of training for, and entering kettlebell sport competitions, a failure to dip under the weight puts far too much emphasis on the shoulders, as opposed to utilising the full power available from the hips, and minimising the distance the kettlebells must travel before full lockout. If you are training low repetition sets then the full jerk technique is not necessary, it is after all very technical and difficult to perfect. But for sport lifting it is simply infeasible for just about anyone to lift the weights that many times using shoulder strength alone.