I have a 2010 Quad 4300 with the ACC setup and hate it like the plague. After getting sick of not being able to control the fire, I took the heat shields off both sides of the stove and carefully examined the primary air, front air and rear air setup. The way the ACC system is set up, you can not totally close any of the air intakes regardless of where you put the levers if the heat shields are in place. With the shields off, I can manually push the front and rear air intakes closed, but with the shields on, you can't see or get at them. As for the primary air, even with the lever "closed", there was still about a 3/8 gap. I put some magnetic tape over the remaining gap, and with the shields off, am able to open and close all of the air intakes to precisely regulate the fire. The stove is not pretty with the shields off, and it's also not "safe", but I am going to have a buddy of mine who is a welder do some cutting of the heat shields to allow access to the air intakes. This morning at 5:00 PM, I pulled out a layer of ash and dead chunks to allow a reasonably full reload. In went a good mix of sugar maple and white ash; never having seen this before, I am stunned to see the stove still putting out a lot of heat with a huge coal bed at 1:00 PM. People with Blaze King stoves will probably laugh at such short burn times, but I am thrilled with it. I hate Quadra Fire.