I was at our world underwater and tried on 3 suits. An XL tls350, L tls350, and XL CF200. I had already ordered an XL CLX450 and was a bit paranoid that it wouldn't fit when I got it.
I had the dui reps measure me and got all 3 of them to give input on whether or not I'd need a custom suit. The reps were absolutely outstanding in helping me. We concluded that I was borderline on whether or not to get a custom size.
I am 6' 1.5" tall and 215 lbs. Measured at 46.5" shoulders and 37.5" waist and I think 42.5" hips. I was surpised at the waist/hips measurement even though I have put on 15 lbs this past year. Whatever you do don't go by your pants size. That isn't real! I wear 34" jeans but the tape measurer shows that isn't accurate.
I had on jeans and a t-shirt when trying on suits. I tried the tls first. The XL tls350 was too big. both too tall and too wide everywhere but my shoulders. I thought I was screwed on the clx450 order now. I tried on the L tls350 and nice everywhere but the shoulders. No way I could get it on and off alone and getting an undergarment in there would be a real tight squeeze which would limit my reach. They didn't have a clx450 in XL for me but told me sizing was very very close to the tls. I tried a CF200x in XL and that fit quite nice actually. It was slimmer than the other suits which is good and would also stretch slightly for my shoulders. The legs were surprisingly tighter and one rep didn't think I could fit a 400 undergarment in there and he was probably right.
I just got my clx450 in last night. To my relief it is the best option for me in a stock size and is a keeper. As the reps said, an XL would probably be an inch too tall for me and it probably is but it is certainly livable. The waist and hips are probably a good 2" too big for me at least but it is certainly manageable. Looks like a great suit and I think I'll be glad that I put money toward some options like zip seals, 2 pockets, dry gloves instead of a custom cut.
If anyone wants me to post all the measurements they took for frame of reference let me know and I'll find that sheet at home and write them here.