The Apeks XTX200/XTX50 and the MK17 were all tested by Scubalab on the ANSTI Breathing simulator. They all had a perfect score (5 on a 2 to 5 scale) in all 4 categories.
It seems most if recommending Apex will go for XTX. However I would like to go with ATX as the XTX ones are a fair bit more money than the ATX ones. Are the XTX regs worth the extra money or should I just go for some ATX ones?
Built-in electronic intermediate pressure gauge; reversible hose configuration, bubbles routing are good to have but not essential to me.