Dynafit/Ski equipment failure question

I've been having some issues with screws for my freerides coming out of my Coombas and the guys at Marmot in Bellevue have been great if you are looking to take them somewhere to get them fixed.

Does anybody know of any (Seattle) shops that will install inserts?

How much do you weigh Alpenho?  The reason I'm asking is that you just may have overpowered a really lightweight ski.  I know heavier skiers who have snapped Superlights in half by just skiing into steeply sided moguls.  And for the record- I'm not calling you fat   

P.s. I have exactly the same set up and love it.

How much do you weigh Alpenho?  The reason I'm asking is that you just may have overpowered a really lightweight ski.  I know heavier skiers who have snapped Superlights in half by just skiing into steeply sided moguls.  And for the record- I'm not calling you fat   

P.s. I have exactly the same set up and love it.

about 190, which did make me wonder - but again, the ski didn't really break, and the failure happened on a pretty smooth surface. Of course, accumulated abuse, microdamage, etc etc. I suppose is possible. I have broken skis and bindings before, but the cause/effect has seemed much more obvious than this occasion. My guess is it was a combination of weight/speed with the effect of a less-than-optimal mounting. Just glad it happened in a pretty benign environment, it freaks me out thinking of all the trips I've done on those things when it could have failed and the consequences would have been severe.

That said, it seems like something I would want to prepare to deal with in the real mountains. To mitigate this as a possibility, does tightening the screws really help? It seems that has the potential to cause damage, break epoxy/glue bonding, and probably a whole lot of other things I can't even think of.

I have my Dynafits mounted onto a pair of DynaDuke plates which have a larger mounting surface and more space between the mounting screws. Something such as that may help you resurrect your skis and your confidence in the bindings.

If too much material has been removed with the screws for a helicoil to work, you may want to try an insert first (quiver killer and bingingfreedom sell them).

A helicoil insert has a 0.8mm larger O.D. than QK or BF.  (I just put a caliper on it.)   Yes, the QK/BF tap is 1.6mm larger, i.e., 0.8mm radius.  But the outer edges of the helicoil bite core that the QK/BF would not touch, i.e., helicoil fills a slightly (0.8mm) wider cross section of the ski core. 

I have used both.  The coarser (wood screw) thread of the helicoil seems to have much more bite than the (machine screw) thread of the QK/BF insert, i.e., QK/BF threads are significantly shallower and finer than helicoil threads.  Comparing tap O.D and insert O.D. confirms that.

A machine screw thread in a soft core makes me nervous. A machine screw thread is not designed to bite wood.

ETA: Brass and aluminum knife edge inserts are available from some hardware stores.  AFAIK, no taps are available for them, and that's too bad.