i'll have to cosign with UserFriendly here
however, i do blv some work better than others.
i like dutchmaster's replicator. i also only use rapidrooters or no medium at all.
with rapidrooters in prop trays, i root in around 5 -7 days with a light nute mix of rhizotonic and cannazym (from canna)
when im aero cloning, i can get roots in 3-5 days no bullshit (fat pretty ones).
i dont have to dip in cloning gel, but sometimes i do, i havent noticed a difference whether i do or dont. i do however use a mixture of either clonex or rhizotonic and cannazym (both canna products). Im also opt to blv that the sprayers that i use are integral to my system as the micron is very fine and something i try to shoot towards tag (true aero grower) although i dont blv the whole concept just a few bits and pieces minus the asshole/bougie mentality of tag'ers
still with ALL that said, having the right sprayers, conditions... you could clone flawlessy in just plain water