hamsiss:In fact I'm a new diver and this will be my first reg
but I want a reliable and durable reg,
which will support me in deep, cold (in future) safely and comfortably.
I've narrowed it to these two by the helps of user reviews, performance tests on magazines and firms' info.
And a good campaign for both Apeks and Oceanic
both of their prices are simply identical (I wish "identical" is the true word ) 360-380.
About DS4 I dont like swivel turrets (don't feel safe),
If XTX100 is the same (or better) no need to pay more for a shiny XTX200..
If I could rate service support, I can't as I'm not experienced, they are simply the same. (Oceanic service supports Apeks as well)
hamsiss,
Please go read more bout the regs, the DS4 doesn't have a turret, the XTX100 is better than the 200 in terms of performance but it's a little heavier. If this was your first reg, go get the DS4/XTX50. When you have decided to do tech, you can then consider which more expensive reg you want to buy then. It's better to get a reasonably priced reg that is a great performer and should you like something else like sp later it isn't too late to change. For your first reg you can't do much better than the DS4/XTX50/XTX50 combo.
SangP