I would take an estimate that for every 7's sold that about 20 -30 FL stilts are sold in the UK if not more, I'm just thinking here of what we sell, and what Elron have been selling as they have a lot of resellers as well! That's the simple reason why you hear of more FL stilts problems whether spring, frame or what ever.
@ Kazbahn, you're right, these new springs just tend to go when their life time is over, unlike the old ones, which would either go in the first few uses and then go softer over time and then eventually snap or just become too slack to use. Having said that, we have now been selling these since late 2007 and we have increased the warranty from just 28days to 3months on them and have found that we have less returns on these than we originally did so Id say generally these are a lot better.
The hard thing is actually figuring out the life span of any spring as its so varied how often one person uses it from another. You can't really say mine only lasted 4 months as your 4 months usage may be another persons 8 months usage in actual hours spent on the stilts.
