Any1 do the concave bearing mod to duncan bearings? (standard Mosquito size) Its very thin but can be done very carefully. Mine sits nicely in the center every time. Dif-E konkave cost about 15 bux plus shipping http://yoyoexpert.com/product/dif-e-yo/konkave-bearing/, its worth the risk when a mosquito costs 5 bux at Walmart. I also took the shields off the bearings. When they’re in my Metal Zero or Throw Monkey, it sleeps forever.
Still bought 2 Dif-E’s from here though because they are awesome.