Just put a gap of about 1mm between the spray bar and the low needle
High speed needle on mine needed about 4 turns when new. maybe your high speed is too closed??? I've set my low speed needle to get a good transition...when the athmospheric conditions change, if I see that the engine dies when accelerating..I just open the high speed and don't mess with the LS, it is quite easy to set the engine on the lean side because you don't hear a big difference. Anyway 24Oz seems too little time on it.

My engine also didn't like full synthetic oil, I've tryied cool power and Graupner sx-12, and results were not promising...and then I've mixed my own with 10% nitro, 3% castor 15% Molsyn 150k synthetic, and so far is the best thing to it, now that after about 10 liters of fuel seems to be fully broken in, I would like to try the same fuel but with 5% nitro ($$$$)

The engine (TT F-75s) runs great, and I love it