I guess it depends how mission critical it is to the op. If this is a must have, I’d personally spend the couple hundred bucks and just have what is readily available.
It's absolutely indispensable, which is why I had to ditch the Axe III and FM3 for the HX Stomp 2 years ago, and why I now use the QC (smaller than my HX Stomp rig, since I used a couple outboard pedals), and why my guitarist has switched from Fractal to QC. This is FAS's
one weakness. They do everything else miles above the rest, but pitch shifting has been left in the dust.
If it has an Achilles heel, it's the character of the attack.
Good point;
this is something NO pitch shifter has nailed: maintaining the attack, since the "clack" of the bass strings on the frets or the pick attack wouldn't be transposed if you just downtuned. But as long as you're only going up to a few half steps down, it's not too big of a deal, although I occasionally toy around with having a high-pass filter
ahead of the pitch shifter to keep the attacks. These days, i don't really bother since I play with a little hair on my bass tone anyway. I never tried the Pitchfork, but I have seen lots of people swear by it. My thing is that I want it all in one box - so far, that's the QC (I could get away with it on the Stomp, too, since I'd only need 4 blocks - the pitch shifter, amp, cab, and compressor - in a pinch.
I recently upgraded from the 2 to the 3 and mirror your experiences.
There are some staple patches for my band using the dual chromatic block, the 3 warbles quite heavily and sometimes misses the harmony altogether.
I've tried all combinations of settings but have yet to get it tracking the way my 2 did.
Interesting; the 2 tracks better than the 3? I never would have guessed.
In any case, if I went back to playing guitar, this would be a moot point, since we only ever had one song that was downtuned and clean (the Sweater Song) and the full band came in quick enough that I could let the artifacts slide for a few measures. But now, even with a monophonic bassline, I can hear all sorts of weird stuff happening to the sound.