I also followed TSandM's recommendation and went for the Whites Fusion Sport with X-shorts for pockets, and I have been very happy with it so far, very light and comfortable. The skin did start to show signs of wear pretty quickly and my X-shorts are already looking pretty chewed up, but I would not want a heavier skin, I would rather just replace it when the time comes, and the X-shorts are very handy for wetsuit dives as well. I like the replaceable neck and wrist seals, the large rings do not bother me, and are in fact perfect for pull-over dry gloves that fit over merino liner; these are very inexpensive, and have served me well so far in water down to 48F. You may want to have spare gloves, and spare seals, all of which is available at DRIS. I did not like the rock boots, it was impossible to match them in size to my Hollis F1 fins even though I tried a few pairs of each. I was considering rock boots because I was initially having foot pain in the simple fusion boots, and thought I needed something thicker to protect my high instep against the hard fin. But in the end, I just went for the larger fins, and I got used to a less-than-airtight fit of the fin of these somewhat-thin boots. I use MK3 socks, and Thermal Fusion over Underarmor. The suit does get buoyant with thick undergarments, but it is manageable. I have installed the Halcyon P-valve on my own, around $150 or so (plus quick disconnect, gaskets, patch kit, Freedom catheters from surgical supply store, free samples of Rochester Widebands can be ordered over the phone).