Paul - I've no doubt you're right, it would be great to try C/L again. I guess I'd have to investigate the electric options though, as there's no way I could get away with the diesel engines anywhere near where I live these days...
The iOS update is now submitted to Apple, so if all goes well, should become available in a week or less.
Sean - which version were/are you running? The released Windows/Android versions have got the aerodynamics changes I mentioned above, but the iOS hasn't yet. But as you say, it may be that the mass is off, because it's just a small modification of the R/C version of the plane. It's 1.8kg for a 1.5m span plane, which I thought was reasonable. However, maybe I should have put coupled flaps on it...
Cheers - Danny