Since day 1 for the life of me I can never get the wire brush to go all the way in on the left side. Everything I read and watch says the wire brush must go all the way in on the left side. Does that mean right to the end, so there's hardly any wired handle left? I get mine to go in and there'll be about half the length of the wire left. It seems to just come to a wall. I push as hard as I can and all I'm doing is coiling and bending the wire up inside the vent it seems. I know it's supposed to make the right angle turn somehow, but I just can't seem to get it to do that at all. This will be the 5th or 6th time I'm cleaning it now. The stove still works fine and heats our 2400 sq ft house as well as it did the first day we got it. What else can I try? I was thinking of attaching the drill to a similar brush that would be able to spin, if I could find one. I'm also afraid of breaking something inside there if I try something a little too aggressive like that. Any tips and advice would be greatly appreciated.