What type of grow medium are you planning to use? Peat pods? Rockwoot? Root Cubes? They all will work, but I learned on peat pods - they look like little coasters but when you add water they puff up and look like a big brown marshmellow of sorts.

From my perspective the rooting hormone is simply a personal choice. Back in the day (15 years ago) I used Olivia's Solution - a liquid- with peat pods and had a good success rate. Today I'm using Root Tech gel with rockwool and having a similar success rate. It's six on one hand, half-dozen on the other IMHO.

Stinky is right to not spray the cuts directly if possible, but to spray the tray and humidity dome to create the moisture.

Here are a few pics I just shot for you a minute ago:

pic 1 = little super skunk clone, very small but about the right size to stand up in a cube

pic 2 = roots starting to show thru, but needs more time to grow stronger before transplanting. Its like christmas day when you see the first tiny roots like this

pic 3 = poor lonely girl in a big dome. Notice I sprayed the tray and the dome to create moisture but not the leaves. Spraying the leaves will leach them, don't spray leaves

pic 4 = the dome on its shelf, heating pad beneath on low, under 2' flour fixture daylight tubes

pic 5 = her sister I transplanted yesterday. she was a bigger cut and rooted a few days quicker. she's a Super Skunk so I named her Pepe (as in Le Peuw)