I cannot say anything about the MX Ergo. So far, my MX Vertical hasn't gone all sticky on me (yet?). What worked for me on other sticky plastics was rubbing al

I cannot say anything about the MX Ergo. So far, my MX Vertical hasn't gone all sticky on me (yet?). What worked for me on other sticky plastics was rubbing alcohol. I does leave the finish slightly different than it was initially (less grippy), but I've had good results.