for some reason the most damaging reptile combo i got with no inf patterns in a vs match was vs nightwolf not vs liu (where i got about 10 hps dash punches), it was:
RH into Forceball, aaHP, Forceball, aaHP, aaHPx2, aaHPx2, aaHPx2, aaHPx2, aaLP HP, aaLP HP, Uppercut, it was 82% or so.
as for the 3xpunches inf (not aahpx2, f+aahp inf) i told shock and konqrr a pattern start up which leads into easy inf, and its in the guide section, if you hanzo used it in the first or second round you will got it for sure - after forceball its:
aaHP, move forward aaHPx2, Dash, aaLP aaHPx2, Dash...
sindel's one is not hard but not so easy thu.