TexasTrad
I really like the ability to adjust preload to get a comfortable and smooth draw that feels good to me. I can adjust weight by about 5 lbs., too. Tiller can be easily adjusted, but I don't have a lot of knowledge on that aspect. I've only shot Morrison limbs on my two risers, but there are a lot of very good and inexpensive limbs readily available.
All in all, maybe it's just more room to tweak and tinker, LOL!
BTW, is it the mesquite/macassar riser you were eyeing? That one surely caught my eye!