Evening gentlemen. I'm going to try and not post a hate-filled tirade. However, this Peterson Aran has me beaten. For the past ten minutes I have been spewing expletives and trying every single permeation imaginable in regards to techniques involved in removing a Peterson Aran stem, from the rest of the pipe. I used a torque bar on a 400lb tire's lugnuts that had rusted over the period of several years. I'm not saying I'm the strongest man alive or anything, but I've dealt with things that require a little bit more muscle then an average joe's bench press. I've never dealt with anything like this Peterson stem. To be frank, I CANNOT get it back on. I had to use a towel and a heck of a lot of effort just to get the damn thing off so I could clean it. Are Peterson stems supposed to be removable? Am I doing something wrong? It doesn't help that the darned stem is almost impossible to get a good grip on. Any tips? Twisting works for a ways, and brute force works for a bit more, but this darned thing still has a small gap. I'm a few seconds away from grabbing a pair of pliers and a rubber mallet.