Welcome aboard!!
NEF/H&R is switching over to all extractors instead of the ejectors to eliminate sticking brass, you could get either since there is no distinct cut off for the ejectors.
Wood stocks come in 2 versions on Handis, some of them are solid, some are laminated, none are checkered. The resin laminated stocks(Cinnamon, camo and other colors) of the Ultras come checkered, although uncheckered stocks are available when purchased direct from them as accessories.
If your Handis are shooting good, don't mess with em, if they ain't broke, don't fix em!! Best advice is to shoot first, then fix if they don't shoot to your satisfaction after a reasonable break in. Read all the stickys, that's what they're there for. :wink: