Barbarian, using gutter downspout is interesting....large cross-section, lightweight, rigid...
G3, which pole saw is do you have...Fiskars? I've seen a remark or two that the extension lock-nuts can get wear on them and stop holding good. Had any problem with yours? I'm interested in one of these... As for equipment useage being ok'd for bee use...you've got a good boss.

Ya'll are more experienced than I am at this and I'm not disputing the success of using a vac to harvest a swarm but a bucket just seems "better" to me.
I can see where using a vac on a swarm located in a pedestrian/populated area might work well, but even with the vac you'll still have flying bees. If the cluster can be reached with a vac it seems like it could be reached with a bucket. While a vac is still harvesting bees (and it is a slow process), a bucket gets most of the bees in the box on the first dump...and most likely the queen. I have no scientific data on this

but from eyeballing I'd say between 80-90% of the bees end up dumped in the box on the first bumping. Bees start fanning on top of the frames and around the edges of the box almost immediately.
It is interesting that I've found that fanning bees don't always signify that the queen is inside. I've had bees fanning like crazy only to make a subsequent dump that contained the queen. Maybe the bees themselves have such a strong scent of the queen on them that when they are placed in the confines of a box the strong queen scent tricks them into thinking she's in there?

I know that the recent swarms that I've hived have had a very pleasant lemon scent to them that must be fairly strong smelling being as I don't have a very good "smeller"

Anyhow, after the first dump there are flying bees that begin to orient on the hive. The reclustering of bees on the swarm spot creates successively smaller clusters that are simply bumped into the bucket again and dumped into the hive/box. Once the knot of bees on the limb has gotten small (fist to double fist size) I put the cover on and the porch becomes a "fanning porch". I will wait a while and give this knot of bees a final bump and pour them out at the entrance. Usually, I'll leave the hivebox open until dark and the rest of the bees will be inside by dark at which time I'll seal it up and move it to the beeyard. With a vacuum pulling bees into a sealed container how do the flying/orienting(?) bees get inside? Once vacuuming is over with is the box opened to allow the flying bees to enter?
Again, I'm not dismissing using a vac on swarms...apparently many successful beekeepers are using them...I'm just throwing my thoughts out there...hopefully they're worth *at least* what you paid for them.
Ed