Can i double up the bar risers? 2012 R1200RT

[mule]

Short guy with...short arms.

2012
R1200rt

Purchased helibar risers which really help. But... I really want max satisfaction which = sitting just a little more upright.

Can I:

Double up the risers for twice as much up and back effect? Seems plausible as the whole pattern is ready for it.

I do understand clutch cable needs extending but o/w see any issues?

Fwiw i am really not interested in pursuing a different bar riser. This question really is a generic question re: doubling up ANY bar riser...
And...
I understand the yoda position thing so dont spend alot of time trying to explain how i should be bending fwd a little anyway. Thanks.

Ok go