Sorry bout the slow response...
I'd love to do a centrifuge page (not sure how to go about it though).
Reason for quitting was kinda two fold. First I decided to sell the house and turn my shed into a home office (rather than a shed that smelt a little odd) & wanted to get rid of anything that would have the place looking a bit untidy. And last year I committed to working with a company to get it ready for an exit. This commitment meant about 60 hours per week which didn't leave a lot of time for family, yet alone making fuel. So something had to give.
The work thing didn't work out, but by this time I had given away my collection and gotten out of the swing of things. Plus I'm selling my 100 series Landcruiser which was the guzzler, I still have an E320CDI which is a bit better on fuel and a petrol Fiat 500 which is pretty economical and some classic cars which are also petrol.
That said, I really enjoyed making fuel, beating the system for a change, and the odd bit of experimentation :-) Nice to be on a forum where folk help each other out too

And even though I haven't made fuel for a while, I still read the odd thread - don't think that will change.