I've been playing the clarinet for 45 years.  I should be better by now!  When I started playing saxophone I practiced like crazy, but I let the clarinet slide a bit. 

The saxophone and the clarinet are entirely different creatures.  They may come from the same Family, but once you hit Genus, all bets are off.  At the Species level, as we say in Brooklyn, fuhgeddaboudit!

If I had practiced clarinet one more hour for each day I've been playing, I would have an additional 16,425 hours of practice under my belt.  I'd be a black belt clarinet player!

When I was in college, Kal Opperman commented on my evaluation sheet during an adjudication, "Could be great if she would practice."  I still have that sheet. . . and I'm making up those lost hours.