Tired of rockets collapsing when physics initializes, but it would be fine if physics didn't start with a jerk?
Irritated launch clamps can twist your rocket apart when physics starts for no apparent reason?
Need more joint stiffness because you're playing Real Solar System and the stock joints just don't cut it?
Then you need KERBAL JOINT REINFORCEMENT!
Lessen the effects of physics glitches and get back to designing rockets to handle flight, not to handle the forces applied
The most recent appears to be KSP-RO's fork. But it's locked down to 1.4.x versions. This is ferram4's original code recompiled to 1.4, and I think there's some fixes by now. it has a fix about clamped vessels shifting from PRELAUNCH by a physics glitch.
I think the second most recent is mine (you need to install this too). This ones has a lot (really lot) of fixes did by meirumeiru merged (that may or may not include the above mentioned one, I need to check -[just checked, that problem, if