I don't think building it up would help. Its the overall thickness of the coulter is the problem. If you are not careful, it will tear up your bearing. I bought a pile of the coulters three years ago. Company wanted nearly $600 apiece. I found a guy who made some for me and he charged $275. Haven't figured out how to do the pads though. I think I know how to make them but I haven't been able to locate the correct foam. Got a fella looking into this for me. If anyone can figure this out he can. $19 is a bit pricey. If you wrap the pad in duct tape, it will last much much longer. BTW, if you are interested, I can dig up this fellas phone number for you. It might mean a drive, but I imagine you could save around $300 on each coulter.