A couple of thoughts:

-- I don't know about Dauphin's, but for the compression style failure in 'toysejr' pictures above one aproach is to put in on a fuz jig to straighten it out and push the area near the failure back into shape, then use the dremel cut-off wheel to cut some 6 to 8" long, 1mm wide slots along the fuz (sorry for mixing units!!) at 8 to 10 places around the circumference and then epoxy in strips of 1mm x 3mm carbon section (the stuff that is used on shockflyers). Wipe off the excess epoxy and clean up with Metho as you go. I have seen this done on this type of construction it was very effective. It also works for foamies when you break their backs and need to put strength back in!!

-- For the 'toysejr' failure I follow Jim O's lead and would like to see any photos of how the internal crutch failed. From what I have seen, the rear former wasn't enough (and appeared to move the likely failure point forward a couple of inches), but I am bit baffled as to how this could happen with the crutch installed. I have spent quite a bit of time cutting and trying to bend/break bits of Depron in similar situations to get my own confidence that it is strong enough as a crutch, and have been impressed with its strength.

-- Buddy's failure sounds like it is different issue -- I have no details but my memory tells me I have heard of other examples of seams in this type of construction opening (not in Impacts, but other models using this type of construction). While this doesn't make it any less serious or frsutrating, it may not be related to the flutter discussion.

David