Funny you should bring this up Jim, I just finished explaining to the powers that be... the very importance of being willing and able to "capture" the live data with the proper equipment. Seems I've been chasing the exact same concern on the exact same model, with exactly the same description. Turns out, as you noted the OSS would spike just as you mentioned and my readings were pretty darn close to what you have here. Now numerous recordings were made and others found nothing out of the ordinary... now when reviewing each frame it was plain as day. This is after we had 2 very unhappy customers and 4 different techs involved.