Yes, pleased as punch.  I've probably got somewhere north of 15K miles on it.  It never needs attention.  Always runs perfect.  Never needs adjustment.  It's been totally reliable.

I'm anxiously waiting for Sneezy to get his runnin.  He got his from a different vendor and there were some kinks to iron out.  I got two from JFG Racing, a 40mm (actually 38) and a 36mm.  They both were good quality and worked great.  I only ran the 36mm briefly.  It robbed too much from my top end.  The 38mm runs much better all-around and has a killer top end.  The 36 runs great up to about 5.5K and then signs off.  I much prefer the 38.  It doesn't give away any bottom end and extends the top end a good 1500 rpm or more.

Like all things "knock-off", it's a crap shoot.

I went and bought another from JFG Racing.  Much better quality, and I will be putting that one on my hot rod motor.

Theduderino's looked like this.  There was a removable needle jet and the main jet threaded into the needle jet.  He had a bit of difficulty ironing out his main jets.  There's a lengthy post on here that goes over all the details.  Theduderino may be able to elaborate.

Here are the slide cutaway dimensions.

Hey Sneezy, did you ever open up the JFG carb and check things out?  Does it have a standard PWK main and needle jet setup, or does it have that removeable contraption like Duderino's?  Is the slide a #7?

Great work Mike!!  I love your approach and attention to detail!  Thanks.

I am also trying this approach on a non-running bike that I got cheap and don't want to sink a bunch of money in it until I know better what I bought.  It had no carb so I bought the PWK40 at JFG Racing.  It came with a #170 and #50 jet installed (I think they are standard Keihin size, but I'm not an expert on jets).  The e-clip was installed in the 4th slot which I found interesting (usually in the middle slot).  They also included an extra 45, 55, and 165 and 175.

Sorry, I got a little confused in your jetting with different air filtration and exhaust scenarios (I'm old and easily confused).  My bike has a stock exhaust and flat panel air filter in stock air box.  For jetting purposes, I'm thinking #35 and #140 and start with the e-clip in the 4th slot.  What do you think?  Thanks in advance!!

PS - For the stock throttle cable modification, I just snipped and filed down the bullet bead to what you say is a size 7.  I just kept test fitting it into the slide and through the carb top (you'll know when you get it right - takes some patience to get round and smooth - which isn't my strong suit).  In order to get enough exposed cable, I just hack sawed off the end nipple of the elbow on the carb end and filed it smooth.  It fits like a glove in the top of the carb (firm but still swivels).  That's hacking off a bit more than needed, but it was a clean location, and it's still in adjustment range at the throttle cable adjuster to remove free play.

It fired up! That was easy, and $36 well spent. I spent less than an hour total, including modifying the stock cable.

The only problem: If you look in the pic, you can see that the throttle cable tube sticks up way high. I'm not sure how to get around this. And ideas?

EDIT: Also, what's with the octopus/spaghetti tube deal? Are these all just puke tubes? It seems awfully excessive...