Hi all. Hope you're all well. I received a Super speed and a slim adjustable in the mail today. They are fine but in need of a good clean. The adjustable has some marks on the lid which I'm not sure if could be removed and the Super speed opens very un smoothly (due to soap and grime possibly rust build up). I've added some photos. I'm not in desperate need to get them squeeky clean but if possible it'd be nice. Also if anyone could suggest some general cleaning/sanitizing methods to get it shave ready that'd be great. Cheers in advance.