I have found that if I use a normal power grip like I would with a driver or midrange but slide my thumb on top to the very edge of the disc that my Challengers come out buttery smooth. I throw them like this and have hit about 320'+ in the field throwing this way with them. So if you're using a power grip, I recommend sliding your thumb on top to the very edge of the top of the disc.
2013 Vibram Disc Golf Street Team
/Vibram Tester Team
/2013 DGCR Travel Tag #50
Last ACE: 10/25/2013 - 170g M Sole
Metal hits since last ACE: 0
"In general, I get strokes by not playing as bad as others." - Craton