The middle mouse button has a good force to click, its somewhat light but not too light - its okay for what it is. If you wear a 9, go 9. UPDATED REVIEW- I reordered this product and the mounting holes are configured properly. Get on it, FiiO! It doesnt tear your hands up too badly with very sharp Olympic knurling when you are doing volume, but it is still enough to offer a very secure grip when you are lifting heavy loads. Normally it?s not that tight! Not only that, I now find out that I can?t even order the stand, I would need a completely different model! I have very sensitive skin on my face, and this product is WONDERFUL! For boning (phrasing, I know) and lacing; This corset has steel boning. I also watched ?Hamilton? several times (okay, like, 60-70 times), with the TV speakers and both sets of old headphones, and heard things with these that I?d never heard before.