I'm also going to say this... and I know this may be controversial... but for all I keep carrying on about Viper being a consolidated 4.4 MNK...

... I think that Viper and Samurai should swap gear sets. Viper should be on Striking, and Samurai should be on Scouting. This is the one change I would make.

Striking gear was made for MNK before SAM was added to the game. One of the major things MNKs asked for was to have their gear unshackled from SAM, since the play styles are practically polar opposites from each other. What would happen is, if SAM was in good shape, MNK would usually suffer, and vice versa.

Players asked back in SB for SAM to get Brotherhood, since in 4.3 a feature that was added to the game (that you'd only know about from this live letter since the tool tips don't say anything about it) is that Brotherhood actually stacks. This had no real usage outside of comps with MNK duplicates which nobody wanted, but remained a feature throughout SHB even though the game doesn't tell you about it. Instead, they buffed the hell out of SAM to compensate for its lack of utility, and gear stats began prioritizing it over MNK throughout SHB, putting MNK in a weird spot. This furthered the idea that SAM and MNK should be on separate gear sets.

Due to having to accommodate the cosmetics of SAM, MNK gear started looking worse, outside of the Omega and Scaevan sets from SB. Scouting gear looks better on SAM, though a lot of it also looks pretty bad on NIN, especially for female toons due to the really big skirts some of them have. Outside of the AF gear, it's slim-pickings for Vipers.

Since Viper is similar to MNK in a lot of ways, and MNK used to be the "gotta go fast" job before it was the first melee to get dumbed down and kneecapped, I feel like they'd benefit from similar gear stats.