Is the arm intended for an LP12? If so, changing the armboard is a fairly simple thing to do - if you are changing the arm, all the hard work (alignment etc) will need to be done any way. Changing the armboard will make a lot more arms viable. SME and Rega mount being the obvious choices, but others are also possible (e.g. I use an AudioTechnica AT-1010 in my LP12).