Hi mate, pop down and see David or one of the lads at NE Detailing, they'll help you out and let you try some products on it to find the best for the job. Dodo Juice Lime Prime maybe? You couldve probs just tried the SRP on its own. Maybe the 2 AG products together didnt agree. I know you cant use AG Extra Gloss Protection over Ultra Deep Shine.
Just mention you were at the Show & Shine Day
As mentioned Detailing World and Cleanyourcars.co.uk are great sites, post this on those 2 and you'll have an avalanche of answers in minutes! lol