BCR,
You are totally correct re the 'typical' NAA revolver's teeny grip. The two I've shot were too small for my medium + sized paws. Re your Earl and making better sized wood grips, just don't make them too comfortable. Years ago, I had R. Mika make me a pocket holster for my 296, an L-frame hammerless 2.5" barrel AirLite-Ti in .44 Special. Gripped at the time in some rounded Uncle Mike's Combats, which pad the backstrap, it was more comfortable to shoot 200gr Speer Gold Dots in - but 'printed' and drug the pocket when retrieved - back to the OEM dimunitive boot grips. No printing or drag. One day I tried the Hogue X-frame monogrips (for the .460/.500 Magnum series), which softly padded the backstrap and gave me a lot more to hang on to. They fit and functioned perfectly, albeit ad absurdium in size! Back with the boots... and just accept that, in it's case, shooting isn't supposed to be comfortable due to the recoil. That first shot could be quite accurate, however. Grip size is important to 'comfort' - but a firearm that is an effective 'hide-away' needs to be 'adapted to' by the shooter - to keep it's 'hidden' status. JMHO.
My wife's fellow lady pastor friend decided she needed to shoot her 'ancient' NAA in .22 WMR, several years ago, which had been her glovebox protector thru several cars. She could not believe ammo was no longer <$3/box... it had been a while since she last shot it. I cleaned the gun and she bought it new ammo. Both she and my wife were consistently better shots at 7yd on a bg silhouette target - when they remembered to cock the SA hammer. Therein lies the Achille's heel of the SA SD firearm. I had several other calibers in SD that she would shoot, each time asking if I had anything 'more powerful'. When she saw my 6" 629, she asked if that wasn't a 'shiney version of 'Dirty Harry's' gun... and could she shoot it? I had some mild 240gr LSWC's (900-930 fps), so I let her. Her concerned look became a Cheshire cat smile on the first shot - and she would shoot it more than the other cf revolvers, all of which she would shoot DA only - and nicely displayed her marksmanship - even out to 50yd. She took an empty case and a live round to show her work friends what she had done on her Sunday afternoon - after church.
The NAA SA's, no matter the caliber, just aren't right for the occasional shooter - especially as a last ditch weapon. For the experienced shooter only, IMHO.
Stainz