rear sway bar recommendations

RustyRatRod said

From lots and lots of reading, it seems if you run heavy sway bars or stabilizer bars, you don't need heavy torsion bars, as they somewhat emulate sway bars in a way and heavy torsion bars coupled with heavy sway bars usually isn't a good idea. At least that's what I understand.

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Not really.
Higher spring rates for torsion bars and leafs are great for reducing squat and dive.
My Jigsaw Charger is much more stable with the 1.03 bars than it was with the .88s. It has a big front sway bar and a moderate rear one. When encountering rises and dips in the pavement, the car doesn't wallow or porpoise like it used to do. It takes the imperfections and maintains composure instead of feeling floaty.
I've ran cars with and without a rear sway bar.
Hang on a minute...These terms, Sway bar, stabilizer bar, anti sway bar, anti roll bar....they all refer to the same thing. It is a bar that effectively transfers spring rate from one side to the other when the car leans in a turn. It tries to make both sides react the same to keep the car level.
Back on point...Rear bar or not: Yes, there are instances where the addition of a rear bar can result in too much roll stiffness to the point where the car will want to spin out when rapid steering input is made. Obviously that is not safe for a driver with low skill levels. It is really fun if you can control it.