A wool cutting pad is going to leave swirls no mater how gentle or aggressive and it's the fibers AND the abrasives in your choice of compound that will inflict the swirls.
Most "systems", that is the 3M system, the Body Magic system, etc, should have a complimentary compounds and polishes intended to be used one after the other and in the year 2011 chances are good they have a pad recommendation of a wool pad for the compound and a foam pad for the polishing steps.
This is a good quality light cutting pad that you can use with a hook-n-loop backing plate,
Meguiars Solo Wool Light Cutting Pad 7 inch
Here's another wool pad in the 7.5" size, it's 100% twisted wool so it will cut fast and leave the usual swirls.
7.5 inch Hook & Loop DuroWool 100% Twisted Wool Cutting Pad
You're not going to get perfection out of any fiber type rotary buffer pad, you're goal should be to get a good compound and a correlating polish and the polish needs to have been designed to remove the swirls left by the compound and the wool pad.