That's good!My thing on 30 min mashing is that recently, I'd rather overshoot my target efficiency and then later dilute for more yield
Plus, as I've already said, I'm old school and hard habits die hard!
Hit 83 brewhouse the other day on a g30!
Best I've got on my all in one homemade Ebiab is 87%
That's with a sparge and conventional hochkurz style mash.