On Wednesday, February 11, 2015 at 2:15:06 PM UTC-5, David Reed wrote:
1. I am being asked at an FBO in Colorado to provide my own insurance to
fly their gliders. I used to fly powered at several CO FBOs - the question
never came up. Are things different for gliders?

2. What is the best company to get insurance for gliders only?

Thanks

Most power rental places want renter's insurance. The FBO insurance is good for the FBO but their insurance company will go after you to get their money back. I would not consider flying rented aircraft without a renter's insurance.