A problem you may encounter trying to make the acoustic voice louder, is a tendency to feedback when used amplified. You've already got a cone that resonates, so adding some extra acoustic 'gain' to the guitar will bring the point of feedback down a bit. I'd try it out first and see what it sounds like plugged in. It isn't an acoustic resonator, it's an electric one. However if the body is very well sealed, then some venting might be required just to let the cone vibrate a bit more, rather than having to compress the internal air quite so much when the cone moves inwards. A bit like a closed vs open back cab.
No reason you can't use two piezo elements and connect their outputs together, though I'm not sure about how well a split bridge will work without something to hold the bridge pieces secure at either end of the slot.
And speaking of slots, the two resonators I have had in the past both has slots cut in the wooden saddle to hold the strings in place. I don't know if this is universal or not. My two resos both had a much narrower tailpiece compared to this kit, so the slots were needed to stop the strings slipping inwards. But it did mean that you could adjust the string height downwards by cutting the slots deeper. It would remove any requirement to keep adjusting the under-saddle screw.
Note that if you do that, then you'll also need to file/sand down the saddle itself, as you don't want much excess saddle height above the strings, as (especially with the outside of the two E slots). The taller the saddle is above the slot depth, the more leverage there is if you accidentally catch the end of the saddle with say your sleeve, and the easier that piece of wood will break off. The saddle's protected once you've got the metal cover on, but it's quite vulnerable whenever it's off.
Last edited by Simon Barden; 16-12-2018 at 06:45 PM.
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