I've had a mini slinger that I've had a blast with this summer. So much so that I want to build another this winter except I want to increase the speed by replacing the little brushed 180 motor that comes with it. I'm still learning and don't have much building experience so I want to keep the mod simple. I figure the right combination of brushless motor and battery should do wonders for this little screamer. Any combinations you feel would work or have had experience with would be greatly appreciated. I'll let you know what I decide on and what the outcome is when I test it.