So I bought my 2015 platinum eco screw April 2017 and have had to replace the IWE in both sides, twice on the left, once on the right. And now I am hearing a growling noise again and they just diagnosed it as another bad IWE. They will be replacing both IWEs again this time. That's 5 IWE replacements in less than 1 year!! What the heck is going on? Has anyone else experienced as much problem as I have with these? The noise does appear to stop after replacement, so I figure it has to be the IWE. Anything that could be causing premature failure? Typically always drive in 2H, but I'm in MN so I occasionally switch it to 4A or 4H.