I noticed that when using Bob's Logistics, red loaders actually take blue inserters in the recipe, which at first was mildly annoying, but loaders are supposed to be a bit expensive for balance. However, after thinking about it and looking at the other loaders, no other loaders required the next tier inserter. So I used my basic modding knowledge and took a peek at the mod files, and saw that the recipe called for "fast-inserter", but with bob's "fast-inserter"s are actually blue inserters and red inserters are repurposed "long-handed-inserter"s.