yes i would try different bits. i have heard good things about drewtronics but have yet to try them. i use precisebits 60 and 90 degree bits using .035 to .025 doc.
what kind of machine are you using? does it vibrate bad when the machine is running? did you measure runout with router running? the only reason i ask is when i was dialing my machine in, the gib was loose on the x axis causing vibration and ended up with traces that look like that.
you making a wireless RGB controller?