Anyone try this tape yet? Also , I have a question.l I've only got about 6 hours on my heads and have been using crappy Panasonic tape purchased at Walmart (yes, I am ashamed of myself, but I didn't know better until I found this site). I'm gonna switch to the best tape I can find and stick with it, but do I need to clean my heads first, since other posts on this site have noted that mixing lubricants can mess the heads up ?