ive got the megs clay kit, although not tried it yet, with megs, you can use the normal quik detailer or nxt speed detailer, not the ultimate, dodo juice do 2 different types of clay i believe, along with the lube, although im to beleive some clay bars can use water? rather not thanks, lol, let us know how you get on, i have some, which seems to be metal shards embedded into my windscreen on the inside, which would come from something like welding, but i dont know what they are, so this is a good idea