I recently purchased the Pinnacle Black Ice neoprene dry suit and I am trying to find a good undergarment set for it. I have read that neoprene provides more warmth than the shell type suits but not any real temperatures to go on. I plan on doing some ice diving in the winter and some water around the 10C - 15C temps other times during the year. I had my eye on the Pinnacle 250G Temperate Undergarment and want to know what temps this would be good to in the type of dry suit I purchased. Would I be able to wear some lighter wool underwear for the 10C -15C and the 250G undergarment for the water closer to 0C? Any input would be appreciated.