Well but if you plan to use TX then its pointless as it can already boot automatically using the "autoRCM" all the time without needing the device and most likely the same option will be implemented on first release of Atmosphere, though I don't even know if thats the right way of doing it depending how they are achieving it which most likely is "bricking" the nand to trigger RCM on purpose.
I actually would also prefer a better softmod solution and without going nand bricking auto RCM way, but oh well, whatever comes up I surely will want to try it.
ps: But I'm also waiting to see if TX will actually release the soldering chip, I want some cool extras, I don't want just auto RCM and backups running, I want another storage feature in my Switch, I would even pay 100€ for a cartridge to M-SD flashcard like 3DS had leaving main M-SD port for emunand only...