I've been running into this conundrum and just dealing with it for a while, but now I want to suggest an improvement.

I know you've pretty much had your mind set on how many recipes a T3 crafter could hold, but there's potential for more that would lead to better optimizations, lemme explain...

I've been working on a super-crafter using T3 Crafters with ae2 interfaces...
the first conundrum I ran into was an interface holds 9 recipes while a crafter holds 8
the second conundrum was I can put at most 4 interfaces (5 if ejecting is fixed) on a crafter, leading to 45 recipes at most.

right now my supercrafter is super huge, causing an effective load of lag with all the items it crafts, so I want to suggest optimizing it and shrinking it down, using less Crafters, and cramming together interfaces, which should effectively cause less lag.

better yet, make the crafters look up the recipes from their connected interfaces.

also make them look up the crafting request so that don't craft items you don't want.