Check into what you like about the sound of the wah that is in the tone that you are looking for. Then decide what kind of sweep you want and if you want Q control. Personally, I like a Fasal inducted wah with True Bypass. I too found that the Vox was a tone suck but if you get used to it being in your path then you work around it and with it. The Vox truly is a classic wah. The Thomas Organ wah is another nice wah but is also in need of improvement as was noted above. If you can find an old tube organ that had one that is cheap enough then just buy it. You will be able to use the wah, possibly the tubes, and have plenty of parts to sell of or use as trade stock. Some even had Leslie speaker assemblies in them. Many had tube tremolo and percussion preamps. These are great for some homebrew effects and amps. The main amps in the old tube organs can be a blessing in disguie if you want to build a homebrew guitar amp because most of the parts are already there and assembled for you. This is if you are of the DIY crowd. Many of the DIY amps that are built on organ chassis sound phenomenal (I am thinking it is because organs often had huge trannies). If nothing else you get nice vintage replacement trannies. I have personally dismantled a half dozen tube organs and have not once regretted it. I always came away with at least the tube complement, speakers, pedal, and amp parts. The trick is finding one that suits your needs that is worth the $ that you are spending on it.
