DZ hesitation

[Marty King]

I have an Angels Shadow with a 140L that I use as my primary and another Shadow with a DZ as my backup. While practicing with the DZ no matter how slowly I roll on throttle I get a momentary hesitation almost like the engine is going to quit and then it catches and runs. As long as I do not go below half throttle I have no hesitation in response. But any increase from idle to *.* I get a momentary pause and catch. The fuel system is a supply with a foam pickup and a vent over the side. Not flying the DZ all the time and having imediate response from my L makes me question if this is normal for the DZ's or if there are things I should try. I use 30% PM pattern blend in both. Is this the issue for guys using heli fuel or the DZ blend?
 
Thanks,
 
Marty King
NSRCA 2551 D-4

		
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