let's say your like me and use a tupa-ware box for cloning.
in said box, which holds 15, i use 2" net pots.
if i were doing this, for me, i'd stay with 2" net pots so that i could just drop right in.
now, flip to the cup.
root up your clone, remove net pot from cloner, drop right into cup, & wait for solid root growth.
and, you just free'd a space in the tupaware.
one net pot size, one collar size... for all ...assembly line style.
when nicely & properly rooted (long, hairy, white roots) just plant the entire 2" net pot into your 5 or 6 incher with the roots hanging out the bottom.
easy peasy time to roll a jeazy.
much love.
love experiments.
how about rooting the smallest clone you can (my smallest ever is a 3" clone) & busting straight to 12/12 in that cup?
get sum Dr. QT !