Based on your initial comment, I'd go with a Mercury over a Venus unless your lanes have serious carrydown issues. All other factors being the same, the Venus will grab the lane a little earlier and it'll be a little smoother off the dry. But that won't help you much on broken down lanes unless you can make a speed and hand adjustment to get it further down the lane in it's OOB condition. That being said, either one of them is able to do what you want given the right ball characteristics (pin to CG distance, topweight, etc.), layout and surface adjustments.
As far as the Tropical goes, it's a little more aggressive than advertised mainly due to the fact that it uses the same Reactor Pearl Coverstock found on the Fired Up and the Agent.
Edited on 7/13/2006 7:07 PM