More cassette confusion. I'm thinking about getting a SRAM 32t with Apex mid cage RD for a particular hill. But the usual places have PG1050 in both road (up to 28) and mtb (32) versions, as does SRAM (different coloured lock rings and chain recommendations too). Does anyone know if there's a compatability issue? I have XX with road cranks on another bike, so I thought it all played together nicely.