As it stands, SS cloak is OP. It can go invisible while flying and stay that way due to it no longer taking stamina, which is fine. The thing is, nothing keeps it from uncloaking aside damage (fire ticks/acid/bleed..) but if you can't get that on an SS that is constantly zooming in and out, it has free range.
That being said, I think BIO SPIT should UNCLOAK an SS. It allows the bios to be a bit more useful in PvP aside highlighting a target, and helps in PvP against a perma invis dragon.

