I updated wiki in HD combo sections with the following combos.
In "2 Stocks" section:
(corner) cl. D, f+A, BC [HDA], cr. A, cr. C, qcf+A, [HDC] qcf(x2)+AC (3 hits), qcb+B, d~u+C. = 701 dmg
In "3 Stocks" section:
(corner) cr. B, cr. A, cr. C, BC [HDA], cr. C, qcf+A,[HDC] qcb hcf+A/C, [Max Cancel] qcf(x2)+AC (3 hits), qcb+A, qcb+B, d~u+C = 840 dmg
(corner) cl. D, f+A, BC [HDA], cr. A, cr. C, qcf+A,[HDC] qcb hcf+A/C, [Max Cancel] qcf(x2)+AC (3 hits), qcb+A, qcb+B, d~u+C = 882 dmg
Both combos are at the corner and both allow Terry's trinity geyser to do 3 hits every time. The key is cr. A, cr. C, qcf+A which pushes Terry back in the right position to pull his neomax with 3 hits.