Began with significant leak. After removing handle and escutcheon the stem was rotating easily. I made the mistake of leaving the stem in tight off position and tried to remove cartridge. It was very difficult and I almost stripped my cheap cartridge removal wrench so I stopped. Now the stem is stuck in tight off position. Before I make any more mistakes what should I do. I am inclined to retighten the small amount I "loosened" on the cartridge and see if I can turn stem out of tight off position then more easily remove cartridge. I think it is old? Gerber(sp?) cartridge. Am I on right track?