I do. Free skiing and doing drills is a great way to work on certain aspects of slalom. 2 years ago we towed a boat to okeeheelee in april for a week of skiing after six months off. The first 2 days we skied 3 sets each. Each set was 4 passes,drills only. I was amazed at the end of day 2 i was only slightly sore and chomping at the bit to ski more. Day 3-5 still 3 sets a day, still doing drills but pass 3 was a free ski and pass 4 was bouys. Last 2 days first pass was drills, then bouys galore. I got to spend a week in the waterski paradise, skied three sets a day, and didn't beat myself up until the tail end of the trip.