You indeed, did, screw up. But, it's not a big deal. When each YBB is made, whether a 26" or 29", there is a certain 'gap' between the upper and lower sides of the seat stay (where the spring, urathane bumper, and ti slider go). This 'gap' is measured and then when all the internals go in, it is made to be forced apart just a bit. This provides a preload and the frame is actually more under stress while unweighted....than weighted. As you sit on the bike, weight unloads it - sag.
The idea, when cleaning or replacing the YBB parts is to get back to that pre-load. If you didn't measure...all the aluminum slotted cups (that hold the ti slider) are cut so as the tapered bottom is flush with the bottom of the seat stay 'gap' (with the two bolts). If that sounds a bit confusing, just look and you'll see. That aluminum cup has a slot cut in it....that slot should NOT line up with the slot in the two bolt seat stay bottom. Those slots allow a tight fit, but they can let dirt/muck in. When they are NOT lined up, more dirt/muck stays out - so offset them.
If it is still apart, it makes sense to clean it up, new grease, etc. The rubber 'o' ring that sits in the upper part of the stay can be tricky to align...but it all goes together pretty easy. I know Moots clamps the frames in a vise at the bottom bracket and taps in the YBB parts with a mallet until that 'new' pre-load gap is achieved (again....when the tapered edge of the aluminum cup is flush). So, you'll have to get a mallet...tap, tap away while the frame is in a work stand and rear wheel off. That slotted cup and seat stay should have enough friction to hold the aluminum cup - you'll have a very difficult time doing so with just hand pressure as you're pushing against a spring. So - tap, tap until flush, tighten the two bolts and you're done. As you did not measure, ...tap till flush and if you're off a mil one way or the other.....no big deal.
Also, that upper aluminum (lock out) sleeve comes off easy enough. Two small set screws (a 2mm? I believe) come out and that aluminum sleeve pulls off - that is where the rubber o-rings sits and if it's all apart - makes cleaning it all out a breeze. The set screws are tiny - so easy to lose. Careful there. Inside the the upper ti stay sits a nylon bushing - pull out, clean up.....reverse it all to reassemble. Piece of cake.
