Thanks for the help everyone. Looks like I'll just stick with the Apeks DS4 and XTX 50 I was originally set on. I also had a question about hose length. I'm just now moving into tech, more specifically DIR and I've seen the primary hose length anywhere from 5 to 7 feet and the secondary and around 22 inches. I couldn't find anything more concise on GUE's website, so is it just preference? I know that Extreme Exposure here in the States sells the 7 foot and 22 inch in their DIR hose kit, being that that's what they sell, I was just going to go with those lengths?