In reply to TobyA:
Yes to ice - and I knew about it! Ears ringing et al., and I think if I'd had the foam lid I've have bailed. I'm sure it would probably have been fine afterwards, but I doubt I'd have had any confidence in its ability to continue to do its job.
Equally I've tested the side impact of a Meteor (I think there's a pic of the fall in my gallery) to a pretty severe degree, and there's no way I'd ever wear it again. Did its job at the time, then headed for the bin.
I appreciate both sides of the argument, just presenting my opinion - it is definitely a "personal preference" thing.