Still trying for a HIO. No luck yet, but this should do for an extra sleeve:
Some tips for those who haven't lost the will to live yet:
1. If you hit a shot into the drink and mulligan, a penalty shot carries over and will stay as part your score if you hit the next shot into the water too. This will soon use up your 15 shots. To avoid this, mulligan back to the tee after your soggy shot, duff the next tee shot, then mulligan that too. The penalty shot disappears allowing you unlimited goes once you have found a good wind.
2. The L100 Nike driver and new R1 both seem to have the right flight for this challenge. I haven't got anywhere near with the old R1 because the flight seems too flat.
3. Do not forget to take your mulligan before unthinkingly taking a practice swing. The mulligan option disappears and you have to play your way back to the tee.
4. If you have a good wind, but can't get the shot to work, you can chip the ball around on the tee for a different angle or distance. Anywhere on the tee allows a pegged up driver which I believe still qualifies for the challenge.