Not including any kind of "server limitations", I had a simple idea on how substats could work with gear.
Okay, first, what gear do we get through our normal cycles? Looking back at 4.0 and looking forward to 4.1 this seems like the current gear progression (not including leveling, job gear, or Relic Weapons):
What we have now:
Savage Raid: i345 Weapon and i340 Armor/accs
Mid Tier Tome: Creation: i330 - i340 weapons and armor/accs
Normal Raid: i320 armor and accs
Intro Primals: i320 Weapons and Accs
Crafted: i320 weapons and armor/accs
Low Tier Tome: Verity: i310 weapons and armor/accs
Intro Dungeon: i300 weapons and armor/accs
What may come in 4.1:
Mid tier Primal: i335 Weapon
24-man Raid: i330 armor
Mid tier Dungeon: i315 armor and accs
So, one of the things that bothers me about gearing in FFXIV is the utter lack of customization raiders have with their gear. The actual gear that drops from Savage raids is entirely hit or miss when it comes to our best substats. What is even more aggravating, is that the most customization gear obtainable is crafted gear.
It has always been my belief that raiders should undoubtingly have the best possible gear in the game. Why? Because they are the ones that will actually use the gear. Many casual players, mainly ones who don't raid, will not use the gear to the best of its ability.
So, I have to ask, why is raid gear so unaccommodating to our substats?
I've thought up a solution that I feel is fair and balanced. Only savage raid gear and crafted gear are fully customization. Mid tier gear is semi customization, and all other gear is non-customization.
My proposed change to substats on gear:
Savage Raid: i345 weapons and i345 armor. All sub stats customization. Will have 1 major and 1 minor of your choice.
Mid tier Tomes: Creation: i340 weapons and i340 armor. One minor substat customization.
Intro Primals: i330 wepaons and i330 accs. One minor substat customization.
Crafted Gear: i320 weapon and i320 armor/acc. All sub stats customization. Will have 1 major and 1 minor of your choice.
Normal Raid: i320 weapons and i320 armor/acc. No customization.
Low tier Tomes: Verity: i310 weapons and i310 armor/acc. No customization.
Intro Dungeons: i300 weapons and i300 armor/acc. One minor substat customization.
Mid tier Primal: i340 weapon. One Major substat customization.
24-man Raid: i335 armor and i335 accessories. No customization.
Mid tier Dungeons: i315 weapons and i315 armor/acc. One minor substat customization.
If progression in future patches (or expacs) follows the continuing trend as 2.x, 3.x and now 4.x, I would like to see changes similar to this. I believe this would lead to ALL raid gear being useful and far more sought after than, say, pentamelded crafted gear (which should NEVER be BiS). And, for those that don't like Savage raiding, you still get some pretty damn good gear, just not as good as raiders.
I really like raiding in this game, and I seriously would like to see better rewards come out of it. The fact that the only decent item, right now, for my main job, is just the i345 weapons, is really silly.