well... i don´t think hhjatw and atw- rco (nt) are the same
if they would be the same, half (outside) htw and rco would also be the same
but when u do rco u jump a lil bit, when u do half (outside) htw u don´t jump
so if u do atw-rco (nt) u jump, when u do hhjatw u don´t jump;)
btw i think this trick is like a beck atw with a 360 in the middle;)