I'm in the process of switching over from a tinyG controller to the Black Box for my SMW3D R7 which is similar to the Lead 1010 except for using an 800W spindle rather than a router. I changed the default values for max travel and max speed to better match the recommended R7 values. The machine runs fine except it is noticebly slower at acceleration and deceleration. Not a big deal for longer straight cuts painfully slow (as in MDF on fire slow) for curvy detail work. The BB X & Y acceleration is currently set for 10 mm/sec^2. The tinyG x (and y) jerk maximum (xjm and yjm) was set for 10,000 mm/min^3 * 1 million. I'm a little lost since jerk is the derivative of acceleration so I figured I should ask for input before just turning up the acceleration to 50 and watching what happens. Thanks!