So I'm gonna get a rack tonight hopefully, I'm thinking I want a shockmount. I run a Mesa M-Pulse 600 head, and not much else. I think a 4 space rack should be sufficient, this allows for a power conditioner and maybe a 1u effects if I decide to get one. Any suggestions other then the SKB Roto or Roller 4 space? If you guys could just give me some quick advice I'd be more then grateful .