Otto: There's nothing really to solve: I just need to stuff about 4 kilos of lead in the nose.

But seriously, the weather is so appalling that I haven't even thought about the Spit. It's basically ready to go as soon as I get some lead. (I should get a 10 kilo lump before christmas). I moght have to move LiPo batteries behind the firewall to make room for this ballast, but that's a no-brainer 1 hour job.
I've already hooked up all the servos and pneumatics, so as soon as I get the lead and set the CofG, I'll just wait for snow to melt from our field...