Basically just trim/option levels. I have a Monarch that is 58" and 50#@27" and had a Premier that was 60" and 55#@29", so pretty much the same weight. In a fit of stupidity, I traded off my first one and tried in vain to buy it back. Ran across this a few months ago and snapped it up. I have owned most, if not all of the big name bows and the Timberhawks shoot as well for me as any I have had. When work gets better, I would like to have another Timberhawk in Scott's Hunter series, pretty much the same specs as the one I have. I'd be pretty much set then. Great bows! Mike