I usually don’t buffer the dp motion while the tatsu animation is still occurring, I wait until it is finished and then immediately SRK. Works for me.
Anyway, damaging combos:
Midscreen
cr.mp, close st.hp xx lk tatsu -> hp srk (321 dmg / 480 stun)
cr. mp, close st.hp xx mk axe kick, cr.mp xx lk tatsu -> hp srk (383 dmg / 580 stun)
cr.mk xx hp hadouken -> fadc -> close st.hp xx mk axe kick, cr.mp xx lk tatsu -> hp srk (387 dmg / 595 stun)
cr. mp, close st.hp xx mk axe kick, cr.mp xx lk tatsu -> mp srk -> fadc -> hp shakunetsu ( 400 dmg / 572 stun)
cr.mp, close st. hp xx mk axe kick, cr. mp xx hp hadouken -> fadc -> cr.mp xx lk tatsu -> hp srk (405 dmg / 640 stun)
cr.mp, close st.hp xx lk tatsu -> mp srk -> fadc -> ultra 1 (457 dmg / 410 stun)
cr. mp, close st.hp xx mk axe kick, cr.mp xx lk tatsu -> mp srk -> fadc -> ultra 1 (465 dmg / 530 stun)
Corner only
cr. mp, close st.hp xx mk axe kick, cr.mp xx lk tatsu -> lp srk -> ex srk (402 dmg / 570 stun)
cr. mp, close st.hp xx hp hadouken -> fadc -> cr. mp, close st.hp xx mk axe kick, cr.mp xx lk tatsu -> hp srk (425 dmg / 715 stun)*
cr. mp, close st.hp xx mk axe kick, cr.mp xx hp hadouken -> fadc -> cr. mp, close st.hp xx mk axe kick, cr.mp xx lk tatsu -> hp srk (430 dmg / 715 stun)
*The mid-screen variation of this replaces the second “cr.mp, close st. mp” with cr.hp, which seems like it might whiff against certain characters and definitely at long range. Midscreen version is 422 dmg / 710 stun.
All the combos listed above can be substituted with a j.hk/jhp or j.mk at the beginning instead of cr.mp for more damage and stun. I consider these his staple jump-ins for damage:
divekick, cr.lp, close st.hp xx mk axe kick, cr.mp xx lk tatsu -> hp srk (367 dmg / 545 stun)
j.hp/hk, close st.hp xx mk axe kick, cr.mp xx lk tatsu -> hp srk (423 dmg / 680 stun)
j.hp/hk, close st.hp xx mk axe kick, cr.mp xx lk tatsu -> mp srk -> fadc -> hp shakunetsu (440 dmg / 672 stun)
crossup mk, close st.hp xx mk axe kick, cr.mp xx lk tatsu -> mp srk -> fadc -> ultra 1(475 dmg / 530 stun)
j.hp/hk, close st.hp xx mk axe kick, cr.mp xx lk tatsu -> mp srk -> fadc -> ultra 1(505 dmg / 630 stun)
(some of these combos may be listed already, but I added the damage and stun values)