Sorry, I just saw this but it's one topic on BOS I'm qualified to answer. I had endo carpal tunnel surgery years ago at the Steadman Clinic in Vail, CO by Dr. Viola. For years I dealt with numbness, tingling, pain, no sleep and general discomfort. I was living in Winter Park, CO at the time - spending a lot time skiing in the winter and mountain biking in the summer. Eventually the discomfort lead me to seek a surgeon after trying splints, yoga, stretching and every other non-surgical option. Bottom line: The night after the procedure I slept better than I had in years and wondered why I postponed that decision. @Rw3 's information mirrors my timeframe of recovery. With any surgery I think following the recovery protocol is extremely important and pushing it or testing the limits could result in less than 100% recovery or greatly extend the time period.
Personally speaking, I would seek a surgeon with a high level of expertise in endo carpal tunnel release. Dr. Viola came highly recommended by several friends on the US Ski Team (no surprise they needed an ortho LOL). I've since encountered folks that have shared no-so-great results from the open procedure from local doctors in the area I now reside.
Bottom line: my recommendation is find a highly qualified endo release specialist, give yourself PLENTY of recovery time and schedule the procedure. If your results are anything like mine, you will wonder why you suffered so long. BTW, my procedure was almost 20 years ago and lots of cycling, tennis, golf and slalom later I have no issues with carpal tunnel.