I had been planning to do a DBM iced set of OG DBM 6,7,8 and then TS4 DBM 9,P,G. I was thinking this as I already have the 6,7,8 heads. The I thought I would put together a set with 5° gaps go TS3 DBM 7,8 and TS4 9,P,G. Now I'm thinking of 7,8,9 OG DBM and then DRT G or S friend 52° and a DRT 58° A grind. In the end I'll probably die in 20yrs with the unused OG DBM heads being tossed out by my kids.