I agree with not transferring the tickets; as Dave said, by later in a swap it shouldn't be necessary, and early in a swap the idea is to give everyone an equal chance to get some things high on their wish list.
If anything, I would suggest at some point... perhaps by the time everyone has acquired 50 tickets or so... that there is a temporary halt to getting any more to give members who might have kind of fallen behind to catch up. On the other hand, this idea comes from my experience last year in the Piggy Swap, which was my first experience in a group swap, and the method there of "calling dibs" is much different than with this very automated system, which really requires very little online time to call dibs on the seeds that you have enough tickets for. So, although that had been a thought I had earlier in the swap, at this point I don't really think it's necessary.
Also, for anyone who removed some of their items and is feeling bad about screwing stuff up... I think it's a really good thing that happened; how else would Dave have known he needed to fix it?? This IS a beta test, after all