Well, I was changing my KISS as soon as I finished MOD 1 but the problems for me started right out of the box (although I don't think I've complained about them).
Problem 1:
The little o-ring on the ADV stem came loose and had to be reglued.
Problem 2:
Handset #3 leaked from an improperly tightened fitting from the factory.
The changes I made have caused some consternation here and there (a wing that was way oversized for the new profile being one such issue) but I'm not going to dive something in a less than ideal form. Especially if I can make some changes to make the unit work better for me.
Since getting the unit I have swapped the original frame for one I designed myself. Turned out it added too much weight and in the wrong spots. Version two will be better (if I have it made) but until then I've made some other changes to accomplish the same without the added weight.
From another post on why I decided to modify my unit:
Quote: (Originally Posted by onetime)
The first was a desire to get the canister closer to my back. The new frame brings it about 1" closer to me by eliminating the stock aluminum frame. This changes the center of gravity and makes me feel more integrated with the unit.
Second was to allow for easier absorbent swaps. The typical frame doesn't allow the unit to be free standing when the canister is removed.
Third was a desire to eliminate some stuff that I felt was a little unnecessary. By switching to a valves up configuration and switching the O2 from right to left I eliminated the manifold, a stainless steel hose, and a couple of Swagelock connectors that came stock with the unit.
Fourth was a desire to mount different size bottles. The stock frame just didn't seem sturdy enough to back mount bailout. There is a pretty good chance I'll be taking the unit into caves and I'd like to have the option of back mounting rather than bail out hung as stage bottles (not sure that I'll like it back mounted but want to have the option).
Fifth was a need to add another bottle for inflation gas. I know I could have gone the argon bottle type mount but kind of prefer the horizontal mounting under the unit that this frame allows.
Sixth was to add a little weight since I dive dry 99% of the time. Yeah, yeah I know one of the greatest things about RBs is the weight savings but, to tell you the truth, the weight of big doubles never really bothered me. Switching to an Rebreather was more about the logistics of using OC in a bunch of the diving I do than it was about weight.
There were a few other reasons involved but were minor enough that I can't recall them right now.