I inherited a Dovre with a cabin purchase a couple of years ago. After cleaning up the soot and buying some new (expensive but alt brand) logs it has been fine for about two years but not quite perfect. Recently it totally sooted out, burn all the mineral wool and was a mess. I cleaned it out today and had a lot of trouble restoring it to working order (*very* precise log positioning, no wool amongst other things). It's now lighting and burning pretty much as it was, which was never perfect. Looking at this (with the uneven flames, including a tall one that causes sooting which I had previously had the log subdue) what are the next steps? Professional service? New burner? Pressure check?