I'll start by saying i have never used the cajack keep but i like how its put together. Of all the keeps i have read its one of a few that is more closely related to my own keep in terms of work. Not to take anything away from the keep but my question to CaJack and the rest of the board is is this... Should most of the credit be given to the keep, the dog or the conditioner? All keeps created by someone are in terms of how they will do it. If it says on monday weight pull with 1/2 the dogs weight for 30min and i hook my 40lb up and he pulls all out 100% effort for 30 and someone else hooks their 40lb up and he take a 1min break every 10ft its not really the same keep. Just want to get some other doggers take on this.