I'm ridding a Fizik Antares R5. I love the way it performes It is firm and I feel like it fits me well with the width 144mm. I'm just noticing that after 2.5-3hrs in saddle the under carriage is a little sore. So riding the next day I'm wiggling a bit more to get comfortable. Anybody have a good performance saddle they like for longer rides that's not too squishy and don't slide around on?