Thanks for taking the time to respond.

I've come across some interesting explanations to my problems.

As for the main needle, leaning out allot with the nose up, one guy suggested the tank pressure is not enough. Funnily enough the silencer I have on is not manufacturer supplied and is an irvine. This is slightly bigger and so the pressure wont be as high.....hows about that one??. But as I say the main needle I can live with.

As for the slow running, My old man agrees with you in terms of the engine unloading in the air. I will continue to lean up the idle needle. I was worried about going too far but have been told that I will know I've gone too lean when the engine dies!!! when I throttle up quickly.

I am struggling with telling the difference between a SLOBBERING pickup and a HESITANT pickup. Some people have talked about hesitant pickup as being too lean but I cant see this being the case with mine.

Only one thing for it perseverance!!

I will also try the much acclaimed PINCH test.