@owennibley - You work your confidence back up slowly. I started back on combos (though I did try my slalom first). Skiing a few sets told me my achilles felt fine. Then, when I was able to ride my slalom, I just followed the boat a couple of passes and then started easy wake crossings until I worked back up to running passes. Since I also switched to Reflex/R-Series system, that also took some getting used to and building of confidence. I've taken two falls where I released since I got on them. One out the front where I got ahead of the ski into the wakes and one out the front where I actually hit the buoy. In both cases, I didn't even feel the release, I was just in the water without my ski. This reinforced by confidence in the new system and I ski without thinking about such things now. Last night in my 2nd set, I skied up the line to 2@35 and then got 4@35. I know my achilles is strong enough and I know that the release system works.
Still, as someone above pointed out, you can be injured in ANY system. This is a motion sport and we attain some pretty high speeds (some years back, Andy Mapple and Deana Mapple were measured for speed. Andy attained 57mph at 36/-39 and Deana attained 47mph at 34/-38. Combine speed with an awkward fall, and injury can happen. Thankfully, it is rare if you consider the number of passes attempted vs. the number of injuries. I started the slalom course in 1987 and average 8 sets of 6 passes/week. In all that time, I've 1) Torn a calf muscle, 2) spiral fractured a toe and 3) ruptured an achilles. Neither of the first 2 kept me from skiing for more than 3 or 4 weeks. Only the achilles kept me off the water for an extended period of time. I plan to continue skiing...