My new go to midscreen meterless for SG:
F121+2, run 12 xx Dust, JI2/1, 121 ... whatever reset [B2 xx Dust/F3b4/run B33]
Does 22% and leaves you at +22 and the perfect range for B2 xx Dust to connect on everybody.
EDIT: No stamina version of ^^: F121+2, dash, slight step forward, D3 xx Dust, step, JI1/2, 121 [20%, no stamina]
However you get your stamina back pretty quickly using the first combo so... :/
Also, HT2 is insane scary in the corner. A level 2 DF2 combos off of 121, B33, B14, and 33. (possibly F3/4b4 as well?) Easy 40%+ meter less every time. If you're having trouble confirming you can even throw in a run cancel in the beginning like B33, RC, 121 xx DF2 lvl2. Seems like it will always scale a couple percent off though.