I guess it comes down to what a reasonable person would think is adequate time for a warranty(if this is one) repair, or any other service for that matter. I ordered a set of grips from a custom maker and was quoted about 3-4 months. No issue, bought from them many times before. If I actually get them when last promised, it will be going on 18 months. Not holding my breath since I have been given 3 different promise dates in that time. Not to be cliche, or obvious, but if you produce a product correctly the first time , you shouldn't have a backlog of warranty work. Yes, I know that flawed items get out of the factory, but when a enough flawed items are leaving and causing a severe backlog in warranty work, then that is a problem.