I was talking with Jason P late last week about this setup, didn't know about it till then, and went ahead and pulled the trigger and got one in from Pierce.
Install is straight forward, hardest part is taking off the choke circlip and not loosing it in the process. I think the kits a little pricey for what you get, but it seems to be well fab'd and came with a good instruction schematic.
If you're looking for an easy performance upgrade, this is it. Getting really good revs up to redline, much quicker than with the stock progressive setup. I've got to do a little tuning on the jets, but it's totally increased low-end response. I wish I'd known about this sooner. Anyone with a stock 32/36 should consider this upgrade, even if you don't know much about carbs. It's pretty easy to do and takes less than an hour. For newbies, I'd recommend taking the carb off the intake manifold so you have more room to work and check for leaks, jet size, etc.
Haven't plugged up the secondary fuel bush like CD recommends, that'll be part of this weeks turning process.
Thanks for the heads up on this Jason P.