I'm sorry Dopers.Suck, I've been a bit slow to respond. Full disclosure: I work for Alphamantis Technologies, the company that developed the system that ERO Sports uses at the VELO Sports Center.
Each experience is going to be different, and is as much a function of the individual conducting the test. One of the benefits of a wind tunnel is that you'll get how CdA varies with yaw angle. One of the benefits of velodrome aero testing is that you will get a better feel for how rideable your position is.
I don't think anyone can conclusively tell you which will be better for you. There's certainly a place for both in this world, and I'd encourage you to definitely pick one and see how much free speed you can get.
AndyF
bike geek
Each experience is going to be different, and is as much a function of the individual conducting the test. One of the benefits of a wind tunnel is that you'll get how CdA varies with yaw angle. One of the benefits of velodrome aero testing is that you will get a better feel for how rideable your position is.
I don't think anyone can conclusively tell you which will be better for you. There's certainly a place for both in this world, and I'd encourage you to definitely pick one and see how much free speed you can get.
AndyF
bike geek