Best metering powder for 350 Legend

[ttittle]

My son is a little recoil sensitive and so I have been reloading 124 gr RMR 9mm pistol rounds to give him lots of trigger time.
I have been struggling with metering H110. It's not as consistent as I would like. So I am forced to drop a light charge and trickle up. While this is not a problem for hunting loads, it's becoming a chore for plinking rounds.
I'm using the Lee Pro Auto Disk with the double disk setup. All surfaces are sanded super smooth and even have done the screw hack for micro adjusting powder drops.

Which of the following do you guys have the easiest time metering?
Hodgdon H110, lil'gun
Accurate 4100, #11 fs
Ramshot Enforcer

Thanks for any advice,
Todd

 

[JCSC]

I loaded the legend with little gun and 147’s, but I have had static issues with lil gun and H110. It’s a PITA to clean my chargemaster out and seems to stick to everything.

I haven’t tried throwing either of them.