I'm not sure what you're talking about.. the Covertec wheel is installed for right handed wielders.. your main hand goes up top and your second hand (left) goes at the bottom and the wheel is on the side opposite your palm, where you would want it.. unless you want the wheel in your palm, but that's not comfortable at all and with it on the side with your fingers you can at least move one out of the way of the wheel... can you explain exactly what you are experiencing and why it's not working.. maybe pics?
It depends on how you're holding the hilt, but when you hold it button forward the covertech knob is at the bottom left of the saber, right where your trailing hand would go. Like I said it doesn't bother me much, because I don't even use it as a two hander, but for some it probably gets in the way.