Im sorry i was not trying to compare the zinger to the menz it was a prop that i had and was using it on the stand i also ran a zinger 18x8 on the stand i think it was 6300. I fly menz props on all my ww1 stuff, i like the low end pull of the menz.. i do think the low end could be better so i will try a 9.5 mm carb this winter when i do an inspection, i will look to see if the 38 has a pump. The timing is at 30 deg. 32 was a little hard starting 28 did not seem to make a difference.