1 bar > 40% is very doable, even midscreen.
Meterless Corner:
212, 4~upplasma, 4~lowplasma, 321+3 is the highest combo I can think of.
Meterless Midscreen:
212, JIK~disc, run, b311~stab is the highest one I can think of.
Generally the scaling of 212 is horrible, so I prefer 1-bar combos.