I've returned to DFK 1.5 (X360 ver) and I've been having a lot of fun. I got a new high score in the Omote loop today:
222,539,763,723 - C-Strong - Omote 2-ALL (Lx1, Bx4)
208mil at the end of first loop. Messed up 1-4 pretty bad with a chain break before the midboss but did a full chain in 1-5. Still getting close to nothing in the loop. I guess more practice is needed!