New to this forum so thanks in advance for good advice. I have searched around, this is a good, helpful forum. Bought a house near Denver 4 winters ago now and "inherited" a Quadrafire Classic Bay pellet stove from my brother-in-law. It's a 1999 model, but by all appearances had very little use over the years. It sat unused in his basement for years and did not appear to have much prior use. Great unit, heats my entire downstairs and will do the whole house if over 20F or so. I have a problem with it, hoping someone here can throw out some ideas. I have messed with the rather crude slide pellet feed restrictor in the hopper trying to get it right. I've tried various local brands of pellets and have found the shorter the better, but even with the best pellets often times when I lean it out to optimal burn, sliding the restrictor "in" and closing off the auger feed opening, it clogs at that auger opening and stops feeding pellets. So I reach in, very slightly pull the restrictor slide "out" and can hear the pellets drop. Reset 2-3 times and feeding again - until the next clog. That might be a week, might be later that day or night. To get to optimal burn I always run the risk of closing that slide restrictor just a little too much and having the thing clog and shut off. It's favorite time to do it is just after I fall asleep, so when I wake up at 4:30 am it's mid-50's in the house. My alternative is to open that restrictor more, then I'm running risk of an overflowing pot by morning. That slide restrictor is a bit crude and I sit right on this edge constantly with this stove, either clog or overflow. There are two things that control pellet feed rate, that slide restrictor and the auger timing. As I understand it, auger feed timing is pre-set so I only have the slide restrictor to control feed rate. If I could somehow adjust auger timing, I could open up that restrictor to where it would never clog and work out auger timing. On medium settings auger feeds about every 6 seconds. I would love to be able to adjust that and try 8 or 10 and find a better overall optimal for pellet feed. Is this a known or common issue with this model? Any solutions I have not found in 4 years of jacking with this thing? Has anyone been able to change auger timing? It has to be an EPROM or something similar in that control box, just wondering if anyone has had success doing chip mods on this model.