yes a lot of opinons, i like the #9400 powermaster from summit, i've gone thru the starter game and this works even beter than there more expensive 9400 that i sent back. if you dont already have the 16 volt there is another step again. one you have the 16 v you'll never go back. i have great luck with the 16-12 volt v-power from jegs, 565 ci 15.1