The reg is your primary life support. I would get the best you can afford from an authorized dealer. I would stick with the ones that have a history.
(It amazes me sometimes. I know people who will scrimp on a regulator to save 50 or 100 bucks, but think nothing of a $600.00 a month car payment or a $200.00 dinner and bar tab on Saturday night.)
The Titan LX is the equal of any single hose regulator made at any price range. It has high performance, it has a rugged and proven first stage that goes back decades to the Royal Aqua Master. It is heavy built in the first stage and highly durable and because it it essentially the same internals as the Conshelf as well parts are everywhere for them. It uses a simple and easily serviced design. The second stage of the Titan LX is essentailly the same as the AL Legend. I can tell no difference breathing a Titan LX compared to the top end Legend, I have both. In fact, I prefer the Titan between the two. The only fly in the ointment with the Titan is that it only has one HP port. I only need one, a few though like those silly wireless things so that could be an issue for them. BTW, I have a buddy with Apeks, the Legend and the Titan breath just as well if not better. Even better, a little shopping the Titan LX can get you one cheap. Leisure Pro has them under 300 I think. I got mine, NIB, ebay, 200 dollars. They are a perfectly fine regulator for any diving. If your diving doubles then you will have to evaluate your hose routing to see if it is acceptable to you.
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