I too have noticed that cane reeds sound awesome ( and loud) in my poly's (dunbar p2's)

when I made a set of cane reeds from the cane in my backyard I noticed how loud they were. last St. Paddy's day I played them almost the whole night, but about the 2nd to last gig they got soaked enough that they cut out and had to switch to EEzees.

of course them being plastic they dont absorb ANY vibration from the sound so will tend to be louder

KFP