Ok guys, here we go again!

I had a read of some of the suggestions on this thread, so I tried doing as suggested !

Ran a club meeting today ( LRP .12 Spec 3) , started by tuning the engine way rich on bottom and top end, to the point that it ran out of fuel at 4min 40...no power.

So I leaned it off bit by bit until it started to make power, by mainly the top end needle .

I got it to go pretty well, but it was very flat on the bottom ( clutch setting .4 gap, 1.2 mm pre-load / Kyosho RRR ), so I leaned off the bottom gradually until it was crisp, and added a bit of fuel to the top end to compensate.

Well, 4 minutes into the race, big lean bog out of every corner....up to that point, an absolute weapon...I had to richen the top end needle almost a full turn to stop it from happening, then, no power.

It seems to me that as soon as I get the engine tune to the point that it makes good power, I get this silly lean bog. If I tune it so it doesn't bog, then it's too rich, no power...

I've tried a few different pipe & glow plug combos, gearing etc and it seems to make little difference, surely I'm missing something?