Oh yeah, I spaced that out...again.
In that case the PH would be in play for me and I'd compare the constructions of the two hybrid systems, burn times etc. I'd prefer to look at the soapstone, of course.
When it's burning? I've sometimes gotten a faint whiff of smoke right over the stove this year but I'm pretty sure I just need to replace the flue exit cover plate gasket (rear-vent setup.) It's not coming from the door. Could you tell where it was coming from on the Keystone you see?
I haven't yet replaced a gasket on this stove, except the glass when I took it out for access to seal a seam leak..I really need to get them all this summer.