I have had my G80 for some time now but the ball speed definitely has a limit. For my unit, that limit is 178 mph. I had mentioned this in another thread and also sent a complain to customer support but I thought it was justified to have more visibility to this specific issue. The fix for clubhead speed is great, and if this issue can be fixed (assuming it isn't only my unit with the issue), the G80 will be absolutely perfect for all my needs (and original expectations of it).
Hopefully others can chime in and confirm or deny that what I am seeing ia also happening on their units.