Welcome to the forum Jersey Diver. I would suggest that you do your research, make a decision on which direction you would like to go, buy that unit, and then do your training on the unit you have purchased. Each unit has unit specific training. I think you will be much happier concentrating on one unit, at least in the beginning. With the exception of a few select people, most divers concentrate on one primary rebreather.
Just my 2 cents!
Regards,
MixAddict
