I'm running Three with a two step twenty inch aider on all three, things can get a bit dicey on the last stick! But I can easily get 22' without struggling
I haven’t done 6 because I sold one, I do 5 with my bottem stick being a 2 step 18 inch aider and it’s perfect because I can get over 20 easily without much spacing my bow rope is 20ft and I say 24 is right around where I am at sitting face level
I run 6 sticks. Use a 16" two-step aider cause 18+ can get tough in January in pac boots. Running 6 with two step aiders I can get to 25-28' (boot height). Running 6, sticks only, I can get to 18' (at my boots). It's about 18" long, and figure about 18" between each stick. Early season I can put more space in, but late season in heavy clothing and boots I can't. I bought 10 of these and typically run 5 with aiders and can usually stretch 'em and hunt close to 30' up.