G'day Rene,
"Auction circuit sheet" is just my personal view on the rotation aspect
All you have to do is read the classifieds in any of your local rags and spot any stamp auctions in your local area.
Visit all, and find one you are comfortable with.
My favourite is in the back of a local washing machine shop, the fella that runs it makes regular mistakes, is partially deaf tells unbelievable stories about some of the mixtures, and generally all concerned have a pretty good time.
I dread the day when this fella retires, I enjoy it so much.
The trestle tables, (about 5-6) are generally full, and one can view
"hands-on" the day before.
Mint and rare copies are in Hagners under glass.
About 20-30 regulars attend auctions about 2 months apart.
He sells cards, papers, coins, banknotes, match box covers, french naughties, it's just one big pot-pourri.