Nice club you got here Steve!
I was going to start a 37 match club last season, but never got around to it.
I'll be on the multi-match, multi-fuel club this year. I started out in early October burning squares of OSB from the roof deck of the back section of my barn.
I had 11 sheets to dispose of, so this worked out well. To take the chill off I'd load the firebox of the Harman and let it rip. Temps would soar ... and in 1.5 hours they'd crash. I'd load up one more time and let that go. So 3 hours of red hot burn time would make the house tolerable, and make a bit of hot water. Can't mind that for free. Nothin' like good ol' coal though. It COVERED everything in thick, tarry creosote.
Finally burned the last of it on the 3rd and dumped coal on top of it. It's been going ever since. Nice to have the consistency of 24 hour burn times, over 1.5 hours!
So with the 11 sheets cut into squares, I think I'm on my 8th match.