I am planning to swap from a SM56.10 to a 58 degree this year. I was planning to buy a 58.08 with M grind, but now I have convinced myself that I need a little more bounce. I read where the SM4 was made in 58.12 M, but the new SM5 will only be made as 58.08 M. I already have the 46* SM4 so saving on last years model is an option, but I hate to buy new wedges and not get the latest version. Is there going to be a SM5 58.12 M, should I just buy the SM4 or get the 58.08 M and practice a little more?