I just did this. I wouldn't recommend it either, but I don't have a rear stand and/or a jack or a way to suspend the bike, and it was unrideable with the bent stock bars, so I would have had to pay $60 for bars I wasn't going to use to take it somewhere to have it done and then have the clipons installed for even more money. Anyway, it did work, and I got exactly 49mm above the triple on both sides. If I hate the quicker steering and decide to get different clipons with narrower clamps, I may wind up begging a lister to borrow the proper equipment.I just reworked my forks and raised them up 1/4 inch I would not suggest leaving the front wheel on the ground and letting gravity pull the front end down. You will have to measure and re-measure to be sure they are perfect and this may be difficult while holding the front end up.