Ath79 target for GL-AR300M

I've a couple of GL-AR300M and I was considering using the ath79 target instead of the ar71xx for the 19.07 release.

However, the ath79 target is only available for the GL-AR300M-Lite.

I'm using only the Nor flash, so should not be a problem, but the information is not clear and I don't want to risk bricking it.

Anyone tested already ?

Note: I've successfully upgraded to 19.07 with the ar471xx target, keeping the existing config without any issue, in case this info is interesting for other.