Teyah was kind enough to post up a video of this triple unblockable set up...
-d- 5k (UB) 5s, -k- dash 2p 6p 5s 2d -h- j.S (UB) 5P(2hits) 6S 5P(2hits) 6S 5P(1hit) 6S 6HS 22s 22HS frc iAD S (UB) 6p j.k HS D
This one requires no tension.. however is character specific as far as spacing and combo choice inbetween unblockables..
on this setup you posted.. :::22D(22s w/o tension) + -d-(first unblockable), -k-, 214k~41236S, 22D + -d-(2nd unblockable), dash in~412368S, frc, land, backdash, 22HS frc~iad down j.S (3rd ub), 5p, jc, air combo:::.. after the dash in~412368S, frc, is it not possible to air dash back instead of landing and then back dashing?..