Regarding the TB/Buffered switch, my manual didn't specify... but the ONLINE manual does:
http://www.jimdunlop.com/files/manuals/JB95_V2.pdf
[Swith to the]LEFT="Hardwired TB in 'OFF' position"... meaning buffered.
So, it looks like LEFT = Buffered, RIGHT = TB
I'll tell you this- in my setup (which is a medium-sized board, also has a dedicated buffer), the Buffered position is closer to the tone straight into the amp. In my setup, the TB position seems to have a very very very very slight deadening of the high end (I describe it as "less alive"... but honestly, I wouldn't even be able to tell after a beer. We're talking like 1% difference. In my case, it looks like my board benefits from the extra buffering of the JB wah to help keep my signal as close to unmolested as possible.
NOW... I do like it, but I know already I won't be able to rest until I order a CAE to compare it to... I used to love the red fasel on the CAE, but I remember it not liking fuzzes, no matter the placement. I have the JB after all my dirt, but before OR after, it seems to get along better with my fuzzes than the CAE did. But I'm going to order a CAE to be 100% sure, pick one, and be done with the whole damn thing.
If I keep the JB, I'll be looking for a way to put an LED on the side... not sure how that would work, since it has the TB/Buffered switch, and the DPDT switch...