CJ... do NOT cut down a Hyperstretch (or any other wetsuit) in the arms and legs yourself... You can trim *some* neoprene hood openings, and *some* neoprene gloves, however, if you just cut the arms and legs to length, you'll find they no longer hug your wrists and ankles, and allow *way* too much water to flush through, not to mention that the kneepads *still* won't be centered over your knees.
You have a couple of options: you can find a local wetsuit tailor (just "any" tailor won't do); or you can use a remote wetsuit alteration service. Henderson does this themselves (at a serious cost -- been there). However, there are others as well, such as Express Wetsuit Repair, or Terrapin Wetsuits. (I can't vouch for these services, as I've never used them, however, I have heard from others that have mentioned them as viable).