I've used the sway-bracket-jackets for a couple of seasons now. Yes, they do warn you that those 2 points of sway control will be slightly reduced in effectiveness. But I've had zero decrease in stability.
I used to get near-constant loud-grinding throughout turns. Now, I will only get a loud "pop" when I start to straighten out mid-turn. I think this is when 1 f the bars is loaded up against one of the L-pins, and is suddenly released as it's unloaded.
As far as using the jackets with the new-style L-pins, I thought Equal-I-zer was working on a solution? Did they not design a jacket to work with the new hardware?
thebrakeman ('70), DW ('71), DD ('99), DD ('01), DD ('05)
2004 Surveyor SV261T (UltraLite Bunkhouse Hybrid)
2006 Mercury Mountaineer V8 AWD Premier
Equal-i-zer WDH (10k), Prodigy Brake Controller