Looks like this made the rounds, but passing it along just in case... Looks like there may be a problem with #4 and #5 DMM Dragons WRT cracks in the head assembly similar to the earlier recall on the #6 Dragons. The issue was discovered by the folks at MGear, who are working with DMM and their NA distributor to root out the source of the problem.

Link to the MGear post on ST: Clicky!