I skied some during the summer but most of what I did was drills. Hanging out on one side then the other and pulling out from the wakes each side. No wake crossings for a good long time, then skied in front of the buoys so I could be smooth and not get pulled down trying to turn exactly at the ball. Skiing was the hardest thing I did to my knee it usually made it sore which stopped me from doing other constructive things for it until it settled down a few days later. Keep in mind I had one good leg which was my front one. I began as soon as I could on treadmill walking, eliptical, biking and finally running. Biking was the best it would actually shrink my swelling. I can run but won't anymore until it at least gets in the mid to upper 60s on a regular basis. I highly recommend road biking or spinning if you can. Just make sure you are set-up on the equipment properly. No impact, makes your legs stronger, good for your cardio and social if you can find group rides (usually good scenery in spin classes/vanillaforum/js/tinymce/jscripts/tiny_mce/plugins/emotions/images/smiley-cool.gif). I think it did more for my recovery than any other activity. I don't plan on skiing until it warms up a good bit here in Jacksonville, Florida and hopefully it does not bother my repaired knee when I do. I have been skiing the course since 1999 and managed to do pretty well at 2008 Nationals but don't see myself continuing if it causes any significant discomfort. I will be finding out in a month or so... Good luck with your recovery!