I am in the market for some mini rotors. I really dislike using pop ups in some applications and feel that a mini rotor would be a great thing instead. Also many clients have zones with PGP (or clone) rotors mixed in with pop-ups on the same zone and I feel that switching them out to mini-rotors will reduce the problems associated with having pop-ups and rotors on the same zone. Questions 1. am I correct that swapping out pop-ups for mini rotors on a zone that has both pop-ups and standard rotors will increase performance on the standard rotors? I know it will not be a perfect fix, but redoing the entire system usually isn't an option. 2. I am looking mainly at the Hunter PGJ mini, but I have heard some people claim that they are not built to the quality of the PGP. 3. Lastly, one of my suppliers is phasing out the PGP and replacing it with the K-rain Pro Plus. He claims it is better in all aspects, seals, gears and it has the head that won't bust if you spin it against the gears. Is this true or just salesmanship?