What effects load baring capacity?

[crekit]

So basically, title. Even keeping the G's in the green on my current rocket results in explosions of some kind or another. The failure is almost always the connection between the first stage decoupler and the second stage engine. What do?

I figure this will probably be rectified in the part re-balencing stuff in .17, but I'd like to know what stat thingy is responsible!

[Railsmith]

affects* bearing* balancing*

But yeah, the large decoupler is awful. I almost always throw anywhere from four to eight struts between any stages with the new decoupler, and it holds together just fine. Seems to cut down on wobble, too!