So I know this will upset some of the automag purists but i here goes. I have an automag rt pro with a centerfeed (stovetop). Ive had it for like 11 years and Ive decided to cut it down because im just sick oh how tall it is. I want to cut it and put a feed neck on it that claps to the centerfeed and the hopper. I have read that it wont fit right though and you have to use a shim. Is there a feedneck that doesnt require a shim??? Also whats the best way to go about cutting it and how long should i leave it so the feed neck can get a good clamp on it. Any advice would be appreciated and pictures would be awesome. Thanks