RE: Ultra Sport at 235kmp (143mph)
Once again I do not believe this claim. a 10x7 @ 15.5K? I cannot see you hitting 143mph. Maybe you should have your gun "looked at".
I think you are a nice guy and I am not trying to ruin your day but seriously? 143 with an US? I think you should back away from the radar-gun for awhile---
15.5 on a 10x7 is not impressive for a YS-45, are you sure that is correct?