Glitch your way to perfect DVs if you must but I'm not liking this retroactive re-definition of tradebacks at all. If you want GSC tradebacks in RBY then do so, but please don't cherrypick the layers of complexity that can differ on the GSC imports especially on a criterion like blatantness, as that's a terrible idea.
The only reason the tradebacks clause might ever have been assumed to be moves-only is people were previously oblivious to the DV limitations on RBY mons. Now there's a total of two mechanical distinctions between the two mons' sources and we're deciding to ignore one just because it's a new concept? Because it'd be hard to control these roidmons if they showed up in cartridge competitions unless you looked? The argument for allowing 15/15/15/15 across the board is sounding worse than the GSC HP Legends ban justification.
The only reason the tradebacks clause might ever have been assumed to be moves-only is people were previously oblivious to the DV limitations on RBY mons. Now there's a total of two mechanical distinctions between the two mons' sources and we're deciding to ignore one just because it's a new concept? Because it'd be hard to control these roidmons if they showed up in cartridge competitions unless you looked? The argument for allowing 15/15/15/15 across the board is sounding worse than the GSC HP Legends ban justification.