Kubota TE 4052T Tedder

For the people who own one of these. Buddy just bought one and not spreading swath out enough.
Have it tilted all the way forward, played with speed and rpm and got it spreading out about 1/2 more swath width.
Of course no owners manual but found online about the triangle spacers to tilt the tedder teeth upward more.
Anybody putthese in and did it spread the swath even more. Can't try it because he has no washers.
Thanks

Kubota TE 4052T Tedder