Umbrella rig

Have any of you harbor fishermen used an umbrella rig? I’m seeing a lot of them being used by guys fishing docks on social media posts. If so, how are they rigged? Are they difficult to cast?

I have not but have seen people using them in the Harbors, Bays and freshwater as well. Most often they are hooked up with jig heads and swiimbaits. Most often I see a 1/4oz. jig head and 3" swimbaits added.
As for casting I never see anyone have any issues but I am sure you have to have a pretty stout rod with a good reel as the weight is up there and might complicate things a bit. That is my 2 cents, I say go for it have fun and let us know what you think.

Mimics school of baitfish.
They work
Just lots of hooks to deal with on a tube..just sayin.
Smaller versions : Donkey rig, spinnerbait

I also would be nervous with all those hooks on a float tube but still thinking of trying it someday. I’ve seen some videos of guys having big success. Mostly Misson Bay or San Diego guys. Need to check Regulations . I think I heard something about only able to run 3 hooks . So your other baits or flashers might get empty hits. Doing a little shopping.

Banned early on in professional events they worked so good.
Newer ones only have 3 swim baits w hooks to deal with, top 2 or 3 are hookless.
That may be more manageable.
Will definitely give them a try at Barrett and El Salto this May.

I have only used an umbrella rig (I bought the setup) in a lake where striped bass were popping up at random points, and I liked it (hint: white works really well).

I don't like more than one hook, so I only had a hooked jig in the larger center bait.

I can't imagine casting it, I just dropped it and trolled it from a boat... YMMV.

I've been throwing them recently. Just picked up a couple made by Hog Farmer. They have numerous sizes to chose from. The medium to larger sized rigs need heavier gear due to weight. I had a lot of success throwing a "micro" rig with 1/8 oz swim jig heads and 2.8 to 3" swimbaits. I throw this smaller rig on a 7' 5" Heavy Power casting rod and 200 series bait cast reel with no issue. I've been using 30-40lb braid main line with a 18-20lb fluorocarbon leader.

The micro rig I use has 5 wires. Top 2 have screw locks that I bend up 1 left and 1 right of center with deco baits. The bottom 3 wires, I bend the longer down and leave it center, 1 down left, and 1 down right. Those bottom 3 have the jig heads and swimbaits. I haven't had a fish bite the top deco baits, they usually hit the bottom center, and sometimes the bottom left or right.

 I just got back from a trip to Santa Margarita Lake in CA, where the Umbrella (or A-Rig) was my top producer for better bass. I caught at least 6 in 2 days with this technique, all Largemouth fell between 2.5 and 4.5lb range. I did pretty well at Havasu Lake in AZ, catching a couple smallmouth and largemouth.

 I haven't thrown it from the tube yet, but I will in the near future. Highly recommend using a net due to hook concern just like I do with all crankbait fish or any lure with a treble hook. Also, confirm local rules due to multi wire and hook style rig. Here in CA you are limited at 3, and AZ you are limited at 2. Other states I've heard you can use up to 5.