Slippery Gloves suck, I second that.
I too have a pair of the Jet pilot half finger gloves, Ive had those for SIX years, and they are sitll as good as new. My slippery gloves fell apart in less that a season, a season is what...four months around here?
Same thing with my slippery shoes, fell apart in less that a season. The only thing good I own from slippery is the pullover life jacket.
However, my favorite gloves tow ear when riding are dirt bike gloves. I had a pair of THOR or Fox or something dirtbike gloves with my jet pilot ones, I loved them and they didnt even pop a sticth.
...Then I lost them. But they were by far the best gloves I ever rode with and offer great protection and grippage, not to mention warmth. They were also the most comfortable on my hands.