In a nutshell:
All RonRig's have turned ends, which never break, unlike some that use crimped ends, which come loose.

All wire used is American Made Stainless.
.041 very strong, and tend to offer more vibration and noise with the blades.
.051 XTRA strong, but less vibration than the .041 wires.
.061 MEGA XTRA STRONG, and used in larger Rigs

5.5 and 6.5 inch RonRig
- Due to the cooler water, the single blade's are very popular, using the #3.5 Colorado or Willow Blade. Right now in the cooler temps, deeper fishing, with cover, slips, etc the first choice is the Colorado. Using a slower retrieval, and jerking, the bite is softer than in warmer waters, so the vibration of the Colorado blade is more sensitive.

- The smaller RonRig's Don't get hung up as much as the longer RonRig's in cover and slips.

Black and Spotted Bass in lots of cover or tight spaces are targeted.

For the double blade models, the smaller #2 willow and Colorado are the preference.
Some will use the larger #3.5 blade on the bottom, and the smaller #2 blade on the top, gives the appearance of a larger shad chasing a smaller shad.

8 inch RonRig:
Fishing deep, in open water, double blade is the hottest one now. In the Pictures, Taylor uses the 8" #2 double blade everywhere, he keeps telling me, why change something that works! The Single #3.5 blades, the double #2 Blades are the goto RonRigs.
All Bass, and striper are targeted with the longer RonRig

- Pro Striper Special and the Pro Striper Special Texoma Transformer
LARGE Bass, and Striper are targeted with These rigs, and are usually trolled.
.051 and .061 wire with multiple blades make this one Great for Trolling.

For the double blade models, the smaller #2 willow and Colorado are the preference.
Some will use the larger #3.5 blade on the bottom, and the smaller #2 blade on the top, gives the appearance of a larger shad chasing a smaller shad.

Crane Swivel Options:
Standard - 40 lb, might can cause to open if stuck, and your line is strong enough.(60-80 lb braid)
Duolock - 60 lb, seem to be the preference by most. If you get hung up, at least 80lb may may get the swivel to open up if hung.
Tournament Pro - 120 lb very strong, will break your line if you get hung up, usually need a retriever.

RonRig Retriever:
I offer 4 and 8 ounce Retriever's that don't require you to be over your hung Rig or Tackle due to the design of the coil that the Retriver slides on.

Good stuff.....I just copied and pasted this to a buddy that was asking questions this past weekend along these lines.....thanks

There isnt a bad ronrig, just know your buying the best one on the market.