I'll have to give this structure a try in my next H.O.R.S.E. tournament. I used abby99's structure last time and felt the same way you did. My tournament actually ended at level 14. However, we only started with T2000 in chips. We base our starting chips on the amount of the buyin (T200 per dollar) similar to the way the WSOP does it (T2 per dollar). That was a $10 buyin tournament because we are just getting used to playing H.O.R.S.E. Next time (end of June), the buyin will be $15 (T3000). In September, I am having a $30 (T6000) buyin H.O.R.S.E event. That one will be really fun!!
For those of you who haven't explored the mixed games, you don't know the fun you are missing!!
Sorry to get off on a tangent!
I will post how the June tournament goes after it happens (if I remember).