Hey, I have done it both ways and the $20 I invested on Ebay for the Park removal tool was well worth it. The headset cups usually come flying out with 1 or 2 light taps. The installation tool is over $100 so I made one out of a long bolt, washers and some scraps of hardwood flooring. Just take your time, apply a little pressure and tap it lightly with a small hammer. They will go right in. Alum. is easier than Ti but it will work if you are patient and keep it reasonably well lined up.--Rob--