You really should try this, it´s really fast!!!:
RH:
E F F# G G# A Bb B C C# D Eb
1 2 3 - 1 2 3 4 - 1 2 3 - 1 2
It´s F. Hauer's fingering. If you need to start in C:
C C# D D#
1 2 3 4
then resume from E with (1) like above.
Try it, if you like it I post the LH fingering.
This technique allows a level of legato and speed that with 3 fingers only you cannot achieve.
