1 1/4 square tubing rod holders and mounts

I am finally getting around to putting rod holders on the barge (poontoon)

And the standard ones that are flush mount base won't work without major modifications.

Seeing that gives me 3 choices in mounts
The kind with the bottom plate and 4 screws and nuts, or the open u type with 2 screws like the scotty #284  or railblaza type

Now I just noticed on the other boat that has a Atwood flush mount with a riser it fits a lot tighter and secure than a knock off brand.. so was wondering how mix and match mounts with holders accessories would play well with each other.

So are the scotty #284 holders and mounts a solid choice?

I only have full access on the gated doors, otherwise the aluminum skin is attached to the top rail, and tight fit on the upholstery..

I did mount a 4 pole holder on the back..

Yes I know it's a "if you have another boat, why don't you just set that one up to fish from?"

And I have..but the bride likes  putting as well.

It does look like there is a mount that has more flexibility..as it grips on 3/4 of the sides and 2 screws..railblaza..

Opinions from folks wo have done this before are much  appreciated.
Pics

Scotty 284
Brocraft
Railblaza