twixtor super slow motion

after effects . twixtor . premiere pro . super slow motion .60fps or higher to 30fps convertion . 30fps timeline .
not just interpret 60fps to 30fps

so
step 1* i put 60fps footage at a 60fps timeline in after effects

step 2* i apply twixtor
step 3* i export at 60fps
step 4* i i import to premiere at 30fps timeline

step 5* i interpret 60fps footage to 30fps

step 6* i export 30fps

??????? thank you