I took a look at the waas source on github and there is a check for max frequency set at 500. You'd either need to edit and build this utility (and I wouldn't be surprised if that's what tolip did) or you can probably use the same trick that worked for the Jupiters and reset the clock before starting cgminer.
Exactly what I did.
Currently, it MUST be stated.
The solution is worse than the question.
It does not work on the fly.
It's slow.
Just setting to 500 is better or as good.
If you are @ 500 now,
and are not getting 3.6 minus % HW and % rejects already,
no point!
I am not there yet with higher clock.
EDIT I tried the Hoopiter approach.
For shure no success here.
I looked elsewhere.
The SPI has changed, things have moved.
Good option if someone wants to reverse engineer the changes.
My first stab was a bust.
YMMV
OK, thanks for the info... I will need to study more, and back to the drawing board.....