In the first few miles it felt smoother overall and as I got out of town and on the mountain road the improvement became more evident. Overall better throttle response without any trace of hesitation, totally predictable, no flat spots. On a couple of occasions I needed to pass slower traffic and the engine felt noticeably more willing to rev pulling up to 90 on a long uphill passing opportunity. Frankly I was surprised at how effortlessly it attained that speed.
Starting cold or hot is instant and the idle which felt kind of lumpy is now smooth with no hunting up and down.
If you're a rider who is critical of throttle response and appreciates a modern engine that runs "properly" this gizmo is the real goods and the diagnostic ability is a plus.
Thanks to Todd and GTM for helping to make a worthwhile improvement so easy to do.
Have you changed anything on the bike exhaust etc ...
It does indeed seem much happier to rev !