Multiplies the number of stacks that can fit in a slot by 4
Crafting using Any Gold Storage Block, Any Gold Storage Block, Any Gold Storage Block, Any Gold Storage Block, Stack Upgrade Tier 1, Any Gold Storage Block, Any Gold Storage Block, Any Gold Storage Block and Any Gold Storage Block, arranged in the pattern shown. Produces Stack Upgrade Tier 2.
Crafting conditional
Stack Upgrade Tier 2 guaranteedCrafting using Any String, Stack Upgrade Tier 3, Any String, Stack Upgrade Tier 3, Ersatz Leather, Stack Upgrade Tier 3, Any String and Any String, arranged in the pattern shown. Produces Stack Upgrade Tier 2.
Crafting conditional 
Stack Upgrade Tier 2 guaranteedCrafting using Any Diamond Storage Block, Any Diamond Storage Block, Any Diamond Storage Block, Any Diamond Storage Block, Stack Upgrade Tier 2, Any Diamond Storage Block, Any Diamond Storage Block, Any Diamond Storage Block and Any Diamond Storage Block, arranged in the pattern shown. Produces Stack Upgrade Tier 3.
Crafting conditional 
Stack Upgrade Tier 3 guaranteedsophisticatedbackpacks:stack_upgrade_tier_2sophisticatedbackpackssophisticatedbackpacksRecipe JSON (2):
{
"recipe_type": "minecraft:crafting_shaped",
"pattern": [
"GGG",
"GSG",
"GGG"
],
"ingredients": {
"G": {
"tag": "forge:storage_blocks/gold"
},
"S": {
"item": "sophisticatedbackpacks:stack_upgrade_tier_1"
}
},
"conditions": [
{
"raw": {
"type": "sophisticatedcore:item_enabled",
"itemRegistryName": "sophisticatedbackpacks:stack_upgrade_tier_2"
},
"type": "sophisticatedcore:item_enabled"
}
],
"sequence": null,
"group_name": null,
"experience": null,
"cooking_time": null
}{
"recipe_type": "minecraft:crafting_shaped",
"pattern": [
"TST",
"SLS",
"T T"
],
"ingredients": {
"L": {
"tag": "forge:leather"
},
"S": {
"item": "sophisticatedstorage:stack_upgrade_tier_3"
},
"T": {
"tag": "forge:string"
}
},
"conditions": [
{
"raw": {
"type": "forge:mod_loaded",
"modid": "sophisticatedbackpacks"
},
"type": "forge:mod_loaded"
},
{
"raw": {
"type": "sophisticatedcore:item_enabled",
"itemRegistryName": "sophisticatedbackpacks:stack_upgrade_tier_2"
},
"type": "sophisticatedcore:item_enabled"
}
],
"sequence": null,
"group_name": null,
"experience": null,
"cooking_time": null
}