I got two reverse useable helix's a 62/42/.046 and a 64/42/.036 and my stock non useable 66/44/.042 what effect does the other have on each other? Spinning a 1.75 track geared at 22/43 with a 600VES motor. Looking for a more bottom end sno-x type set-up.

The 64-42.36 should be a little faster out of the hole since the angle is steeper but the angle is also shorter in length than the other helix(.36 compared to .46 for the other helix).