Played this mod for the first time in a pack with some friends over the last few weeks. I absolutely love it. I have some modifier suggestions i'd love to share. But please, keep in mind that they are not to insult your mod or the awesome work you've done. They are just some ideas for additional modifiers if you decide you want to add more in the future. Balance, recipes, and details are all just for example purposes.

Helmets:

• Sustenance modifier
  Item used in upgrade: Food injector (4 levels)
  Recipe: Hopper, cooked meat (whichever), 2 redstone blocks, carrot, potato.
  Description: Periodically provide the wearer with food, similar to mending moss and durability. Time would need to be tested for balance. 1st level .5 shank, 2nd 1 shanks , 3rd 2 shanks, 4th 3 shanks with 2 saturation, if applicable.

• Night Vision modifier
  Item used in upgrade: Solar Lenses (glasses)
  Recipe: Potion of night vision, glowstone blocks, glass, cobalt ingots
  Description: Auto night vision from sunset until sunrise. Can make toggle with a keybind, if possible. Could have it delicately use durability over time while active.

Chest:

• Reflection modifier
  Item used in upgrade: Spiked Shoulders (4 levels)
  Recipe: Ardite (ingots or blocks), leather, glass, cactus
  Description: Melee only. Reflects a percentage damage back to the attacker. % damage reflected per level: 1st 15%, 2nd 25%, 3rd 35%, 4th 50%. If more balance is needed, have the reflection use a small amount of durability (like thorns enchant) or only have a 50% chance of reflecting damage.

• Gliding modifier
  Item used in upgrade: Hang Glider
  Recipe: Manyullyn ingots, feathers, leather, wool
  Description: Allows the character to gently glide automatically (toggle keybind if preferred) as if using an elytra. Could have it use a small amount of durability for balance, if necessary.

Pants:

• Necrotic/poison modifier
  Item used in upgrade: Tainted trousers
  Recipe: 2 Wither bones, spider eyes, leather, black/green wool.
  Description: Melee only. Has a 30% chance to inflict wither or poison on your attacker (50/50 on which gets applied). Effect lasts for 3 seconds. Could add multiple levels to increase % chance of inflicting the effect or to increase the duration of the effect by 1 second each level.

Boots:

• Jumping modifier
  Item used in upgrade: Slime Soles (3 levels)
  Recipe: Slime (balls or blocks), sticky pistons, emeralds
  Description: Allows the character to jump higher. Could be a default increase of one block height per level or it could be implemented as a multi-jump feature (pressing jump while in air to jump again. Each level would increase the block height or number of jumps by 1.

Thank you for taking the time to read this and for all the work you've put into the mod. It will definitely be a staple in modpacks i create in the future that include Tinkers.

• Sustenance modifier - The Tasty trait is essentially the same thing, and I don't really see a strong reason to have it be a modifier.
• Night Vision modifier - I like the limited night vision idea, will probably use this when porting to the next version.
• Reflection modifier - This doesn't seem like something that has to be limited to the chestplate. Also, the Spiny trait is essentially the same thing. That said, something like this will probably be coming when porting to the next version.
• Gliding modifier - See #53 for comments about elytra behavior.
• Necrotic/poison modifier - This doesn't seem like something that has to be limited to pants. In fact, I'm not sure I see the logic at all here. However, the effect itself is something I can consider.
• Jumping modifier - The Shulkerweight modifier is meant to provide this sort of function.