I have only run 300,000 in the center, but I'm thinking I need to drop it to 200,000, maybe even 100K. Running 8K front 5K rear, but may try dropping those too. I want to try saddle, but I don't have the packs and it's hard to convince myself to spring for them when shorty is working, but people are saying it's better for low/medium. This track is considered medium by our standards, but I'm pretty sure it's low bite compared to most areas of the country.