I did 2 cut outs on houses this past spring while it was fairly cool, in the 80's F.
This time of year I wouldn't want to do a cut-out on a tree or building.
Vacuuming the bees isn't the problem starting out.
It's when you have the raw honey, bees coming back, being in a beesuit in high temperatures, bees smothering in honey.
Not for me.
I tell folks I can do a trap-out at a fraction of the cost of a cut-out.
They usually go for the trap-out method.
But it takes from 6-9 weeks for one to work.
The trap-out I took down tonight was so full of bees I had to put another box on top of the original one.