hi, can anyone tell me what one reg they would use out of these two, mk11 first stage with r295 2nd stage and r295 oct and mares double spg, the other set up is, mk20 which has been updated, 2nd stage s600 and r380 oct with double scubapro spg, my idea is to mix them up with mk20 first stage then s600 2nd stage then r295 oct and scubapro double spg. what do u guys think, many thanks