I started out with the smallest size gel packer I could get, but I did order a larger one once. The gel-style packers in 3 1/2 inches work pretty well; the next size up was something like 5 inches. The balls were too flat and the dick was too...well, I thought it was a little weird and there was too much of it. I used my 3 1/2" packer for quite some time, then decided to branch out.
I went with a Good Vibes packer in the smallest size available--I think it's 4 1/2 or 5 inches. The GV packer has a firm core, so I like the texture, but that means that it bulges more than a gel packer--and it's already considerably larger than a gel packer.
I loved my GV packer, but the bulge was so big that I felt self-conscious and finally went back to gel. Part of the problem is that I gained weight over the winter, so my pants are a little tighter than they were, and the bulge shows more clearly. I've already started to lose again, so maybe I can go back to the GV packer in another ten pounds or so.
