I was checking out some bikes that were "fit for me" by the LBS, but the seat was too high, even after lowering them all the way. They said that they could cut the seat tube an inch or 2 so it would fit me. I did try the next smallest bike size, but that was much more cramped. So my question is how common is it to cut the seat tube? Do they always make it longer to accommodate taller people but allow it to be cut for shorter?