I'm be honest...personally (and, I know I'm not the only one), I don't care for the 4WS Capra rear steering configuration. I understand, and agree, that it "simplifies" the rear steering, which makes it perfect for beginners. At the same time, while I like the "rear steering modes" type of setup (front-only, rear-only, opposite, and 'crab'), one doesn't always want it 100% identical (steering radius-wise) to the front. That's why, for the new 4WS rig I've been building, my plan is to have 100% independent rear steering, controlled by a dial on my Tx.
I realize this doesn't answer your question...but, for others reading this thread, who might be interested in a more "realistic" 4WS configuration, and not even knowing if such is possible, they will now know it's not only possible, but will also have some hints on how to do it.
As for your question...and, so that I can actually help you achieve your goal...you don't need a 5-position switch (if there are even any Txs work such a thing). Instead, program one of the Trimmer Buttons/Switches to operate Ch3 (or whatever channel type rear steering servo is on. With the DX5 Rigged, you should be able to (as I am on my Futaba 7PX) to set the chosen button/switch to a 50-step increment, thus showing you to toggle the same percentages as the 4WS Capra. Even better, you could set it to a 25-step increment (if the DX5 Rugged can do this), which would give you (from left-to-right) 100% left, 75% left, 50% left, 25% left, center, 25% right, 50% right, 75% right, & 100% right (ie. instead of "5-step" rear steering, you'd end up with a 9-step configuration...ag as in, of the DX5 Rugged provides such level of programming settings). I don't know if you'll actually be able to...but, it's worth a shot, right?
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