LRP Sphere comp 2007 problems!!

[chris68nufc]

I have got 2 of these systems and i am yet to be concinced if they are going to be better/less hassle than my original brushed stuff.
I have already sent 1 of the systems back to Apex to see if they can find a fault with it and my remaining 1 in my 4WD glitches at low speeds.Im running a 4.5 Sintered and although it seems very quick it feels very glitchy at low speeds.
At Bury Metro recently Dan Greenwood(Thanks again) loaned me his Novak 7.5 motor in my 2WD and this seemed very good.It was smooth and quite quick.
Has anybody else had problems with their LRP 2007 systems and could anybody offer advice to stop the glitching at low speeds.Thanks.Chris.