i assume that you will take them in to be serviced. that said does your lds service any reg? most will. what diving will you do? cold water warm water? at the end of the day you wont notice much diffrence between any of the major makes as far as breathing goes if they are tuned right. there are some nice scubapro regs but there are others out there with just as good of performance. computer is a whole diffrent thing, as to what you want