I have the same problem. I can minimize the pull, but not eliminate it. I've noticed that certain props aggravate the pull, naturally it's always the ones that perform well LOL!. I've thought about getting the NFB (no feed back) or hydraulic steering, but I haven't found a used set up. I just don't feel like spending the money for a new one. Especially the hydraulic ones! For the time being, I just live with it.
After some long research I decided to replace the whole steering system with a 4.2 nfb Teleflex system. There is a great video on youtube explaining how it works.
