Evoluent VerticalMouse 4 Right Hand Mouse

I've used this style mouse from Evoluent for years. I loved it. I hate this model. The surface has changed and it's too slippery. I can't even grip it anymore. I had to rub it with stick stuff to make it grippable. I have to lick my fingers - to get a grip. Sorry you guys messed up a great product UPDATE: I've been working with this mouse for over a month now and continue to get frustrated with it. For me - it would be perfect EXCEPT for the slippery surface. When I spoke to Bradley at customer service I was told basically you are SOL. I've had it too long to return and, except for defects, they won't take it back. I even asked to just swap with the older models and they would not do it. I consider this a defect but they would have nothing of it. I was told I'm not "using the mouse properly" (seriously??). I work on a desk with 3-4 screens. I have to slightly pick up the mouse to get it to span from monitor to monitor. This mouse is too slippery to do that...so now I am going to Physical Therapy for my RSI and I believe part of the reason for this is the slippery surface. I have to clutch it much harder to get a grip. SO - when you have crappy customer service like that...and a product that lost it's integrity - means the company doesn't really care about YOU. This mouse is for people RSI - people who HURT and have pain..and to not collaborate with the customer to ensure satisfaction - to reduce pain sucks - particularly for so much money. I won't buy an Evoluent again...and I have many years of mousing ahead of me. I will find another product. Suggestions?? UPDATE: 8/4/2016 - Customer service at this company stinks. You don't spent 100.00 on a mouse because you want bull..one does that because you have pain in your hands and the mouse is supposed to help you not hurt you. I don't want them to tell me that I can't return it because it is over 30 days. I am now using a J-Tech Digital and I ABSOLUTELY LOVE IT. it's 1/4 the prices. Bad customer service here. Not work the money