I've gone from 8,06 - 8.12 - 8.25 - 8.38 Full, and now back to a 8.25 Full SE again (3rd Full SE).
It felt terrible. Way too cramped, length wise, however, it also felt a little heavy, as in I had to put in some effort.
Skate with thunders 148. The 8.38 was 32.45" length, 14.62" WB.
I guess I should try find a similar length, but maybe between 14.25 - 14.5" WB to mellow it out?