I've only used the Olivia's CLoning Gel and I like that, it seems to coat the bottom of the cutting and help protect it better. I made a cloning machine and along with Olivia's cloning Gel and Thrive-Alive B1 (red label) I've had a 100% success rate so far since moving to this method

more info on my site and info on how to build your own cloning machine for those interested. happy cloning!

-Eric
Technology Garden

The use of gels, thickening agents for hormones have been around for several years for professional people producing plants from "CUTTINGS", but still new for home propagators. As a rule of thumb, you do get better penetration of the rooting hormone/auxin into the cutting and it can raise your rooting percentages on hard to root plants.
If someone is getting 100% on everything they use a gel hormone product on, I would love to give them a list of plants that are not so easy to root.

So you guys are saying that liquids are no good? I've been told that gels aren't suitable for hardwood but liquids, like Dip'n Grow are. Which is what they claim professionals use.

Liquids are fine, as well as gel's....and yes, dip-n-grow is used widely in commercial propagation. I'm not sure why someone would say/think the gels wern't suitable for hardwoods, that is probably where they could give you the best advantage.