I got this new Reynolds 853 frame and I'm trying to install the bearing cups. I'm using the long bolt with washers technique for a headset press and it's not working. I can't get the cups to go in at all without slipping to one side or the other. Question is, do I need to ream the head tube, which I don't want to do, or do I just need a proper headset bearing cup press. I'm gonna break down and take it to the bike shop soon, luckily I haven't damaged anything yet.