I definitely use Blumats too in my garden. I put the plants on blumats once they get into the flowering room, but I really need it in my veg room for plants in 1gallon+ like you do.
Ever considered sowing directly into beds with blumats? Ive been wanting to try that, and I know a few people are doing blumats/ grow beds, but I dont know if they're sowing seeds. Either way, Its something Id like to try out.
I like pots growing from seed because of the variation in plant structure. I move the shorter specimens to the center for more light. I couldn't do that in beds. I'm sure that beds work well for people who flower from clones.
I'm just an A64 compliant hobby grower with very limited space, 44"x56"x75"T. I was away from the whole scene for 25 years & I'm exploring what modern genetics have to offer- mostly mixed grows since A64 passed.
I just try to do it well. The new soil mix & blumats moved it up to a much higher level. It's easy, too. Once the soil is mixed & aged & the blumats dialed in, I mostly just need to get out of the way. I'd like to make it even easier by avoiding transplanting altogether.