Topic: Straight Shapers

Has anyone used the straight shapers like this?
http://www.hodgeproductsinc.com/store2/Pisoni-Straight-Shapers-for-Oboe-POSS-RT31

And if so, how would you rate them?  Pros/Cons? Is folding easier with this, or would you need something to help?  and any other helpful advice would be great!

Thanks!

Ronnal Ford
DMA Oboe Performance '16
Multiple Woodwind Performance/Theory Cognate
Adjunct Professor, Guilford Tech & Forsyth Tech