Electronics mounting sheet material

Good point, but wasn't the EGT reading even more effective (and faster) in spotting overload conditions?

No.

Well, no EGT increase=no overload, in my books.

It has more to do with not over fueling at speeds less than WOT. Most applicable to engines with a mechanical injection pump.
With Arneson drives, it is possible to trim the drives down and have the rack in a position where the engine is making the RPM, but it is in overload. You are essentially allowing the propeller power absorption curve to rise above the power curve for that given RPM.
Would this be manifested in a higher EGT? I cannot say because I never tried to run an engine in an overload situation like that. What I can say is that several gurus a lot smarter than you or me told me to set the drives to be able to achieve rated RPM at WOT. Which is why we installed the Aetna digital tachometers. A quick run up to put it in the corner confirms that I indeed have the drives set properly. When the boat is loaded differently I would re-check. As you must surely know, high speed planing deep-v hulls with surface piercing propellers are *very* sensitive to weight, LCG, and trim.

@Beau , my apologies for the derail thread hijack.
@mapism if you would like to continue please start another thread.

Roger wilco.

Great idea, CaboFly! I've wrapped my car's outside rear view mirror with that exact 3M material.
Beau, It's easy to change the appearance of many things with THIS stuff. It comes in all kinds of colors and patterns. Instead of matching a panel, wrap the existing panel to match the new panel, is what CaboFly is suggesting, I think.
The car wrapping videos on YouTube are entertaining.

Well, you're in there anyway
The wrap comes in matte black, so you can pretty much use any flat surface material.
There could be a fade factor on the older panel, so "matching" may not be matching.
C'mon, go with camo!

That 3M material looks great! Checking out the youtube videos now to see how much of a pain it could be to apply in a professional attractive manner

Almost anyone could do it on a flat, clean surface. The stuff is forgiving, too. I screwed up doing compound curves on my mirrors more than once. Just peeled it off and tried again. Several times. I wrapped one with the cheapest No-Brand stuff eBay had to offer, and it was a bit harder to work with. The other I wrapped with the same gray carbon-fiber 3M that CaboFly has, and it's thicker and easier to work with. I wish they had this when I was doing installations. One boat I can think of had all that plastic wood-grain in several panels. I had to order replacement panels to match. With this, I could have made them all match