Big edit: hit training mode more today and it seems more like your launcher height / character position when they enter your air max voltage has a bigger impact on damage. I was consistently getting 600k+ midscreen. I’d have to test more, as it seems like sometimes people just randomly drop out. So this means: Ground max voltage is probably not worth doing unless you need to for a DHC to connect or activating x-factor; The divekick/crossunder combo also doesn’t net better damage, but will put someone in the corner; You’ll get more damage with a DHC than using Trish’s level3 (and it uses less meter!).
Edit2: Midscreens are sooo finicky in terms of character height when getting hit by airmax voltage. Anyhow, [media=youtube]zfWz4Yz1tWA"[/media] is a basic midscreen that will net at least 611k dmg regardless of your screen position.
Middle of screen: j.S, 2A, 2B, 2C, S, j.B, j.2C, j.214A, 66 (airdash forward), j.B, j.C, (land/delay), 5C, 236A, 236A+B or 623A+B
*Uses ground max voltage or level 3 if you are pretty much 100% mid screen for ~580k (~790k level3). *
2/3 to 3/4 screen facing corner: j.S, 2A, 2B, 5C, S, j.B, j.2C, j.214A, 66 (airdash forward), j.B, j.C, (land/delay), 5C, S, j.B, j.B, jc j.B, j.C, j.2C, j.236A, j.236A+B
Uses air max voltage and depending on how they catch and your proximity to the corner, it can do ~600-650k
2/3 to 3/4 screen facing away from the corner: j.S, 2A, 2B, 2C, S, j.B, j.2C, (land/crossunder) 5A, 5B, 5C, S, (delay) j.B, j.B, jc j.B, j.B, j.C, j.2C, j.236A, j.236A+B
*Crosses you under so you are facing the corner and will get more air max voltage hits. As with other combos, your mileage may vary. *