If you want better articulation, invest in a full spring pack.

If your goal is to score high on an RTI ramp, then by all means.

But if you want meaningful traction with your flex, save your money and don't buy gimmicky items. Period.

(PS: Rarely ever does the driver of a rig actually see what happens to their revolvers when they're going through an obstacle... And even more rare is somebody watching that knows WTF they're looking at. So they get boggled by the "flex" without considering everything else. And the joker that spent top dollar on their gimmick isn't EVER going to admit they're worth no more than a decent size paperweight, 'cause afterall, THEY spent THEIR money on 'em, so they've "got" to be great....)