I like the way Don Herman rigs his brackets and I did mine the same way. Makes for a nice clean swim platform that's easy to walk across. One thing he does recommend is packing the thru-transom tube full of silicone once you get it rigged because if you ever got water in the flotation tub, for whatever reason, it could run into the hull if you don't do that! It's a bit of a pain if you decide you need to add anything to the rigging tube later, although the silicone is not all that hard to remove. Just make sure you've finalized all the rigging before you seal it! I decided to add a mechanical water pressure gage after I had sealed it, but fortunately was able to use a hose originally installed for the pitot-type spedo that I got rid of.
The only downside I can see to that rigging style is your wiring harness, and throttle & shift cables need to be a bit longer (Don says to allow 6' for the bracket rigging), so it's important to use good quality cables to minimize friction. I haven't noticed any problems with friction in the shift or throttle cables. Denny
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