Thanks. I haven't bought the complimentary coatings yet, I just want to get the screen clean first. I might them separately if the compound works though.Yes, it's great. Wash the glass well first and follow the instructions and it'll strip everything off the screen. Whether that will cure your issue, I do not know however.
If you get the ultra glaco too it makes for a great pairing. If you get judder (which you shouldn't) some of it in the blades should cure it.