Spraying clones directly in tub?

This is currently my second time cloning and I had a 100% success rate on the first 15 I attempted.... Sometimes I sprayed the clones directly as well as the tub and sometimes I only sprayed the inside of the tub.

Which method do you do and why?
Thanks

Both would increase relative humidity, which is the purpose of spraying.

Yeah I agree that It would raise RH but I've read in a few places that the clones leaf blades are able to take in that moisture and feed itself for a while before attempting to grow roots. All of my clones have developed some growth even though the blades were trimmed back but I don't have any sign of roots yet... Just curious