I knew it!!!
That blasted 88 and the Blenheim with their obscured controls, i spent 10 minutes on each one trying to get them to start and i couldn't find what was missing
Thanks for the tutorials. A small question about mixture too. I'm not going to comment on the Hurricane since there's obviously something funky going on with the way mixture works, possibly a bug: pressing the increase mixture key actually corresponds to moving the lever forward which leans the mixture, but on the other RAF aircraft with reversed mixture levers (eg, the Tiger Moth) it does increase the mixture correctly by moving the lever aft.
So, with that out of the way, is there a reason for pre-leaning the mixture on the Tiger Moth and Spitfire? I'm asking because starts are usually done with full rich, except when taking off from a high elevation airfield.