Yup I'm one of those guys using PowerPro on "comie" rigs. There is a simple trick of spooling that to avoid the drawbacks.
1. Start with thick mono. Tie it to the spool, cinch and get few turns. Then tie it to the superbraid and go nuts.
2. Wind the superbraid evenly and very tight - use a leather glove for proper "level" winding and tension.
3. About 3/4 through you desired amout of superbraid stop and wrap one layer of electical tape folded in half so that there is no sticky side exposed and continue with the superbraid. Electrical tape will prevent the top layers from "cutting" into layers below when you set the hook and fight fish and if the fish takes you way into the backing tape will simply fly out.
Life is what happens to you while you're busy making other plans. - John Lennon