James Mark please make sure you dip the canopies in Windex before dipping in Future, this cleans off any grease or mould release. Dip it wait a few minutes to allow it to evaporate then go on to dipping in future. Make sure you have a good box you can put the canopies in for up to 48 hours, this will make sure you have a dust free rock hard finish.
If you have made a mistake, got dust or anything else stuck to it, just dip in the windex a few times and start again.
Dullcote, I have used dullcote on most of my paint jobs, finishes ranging from Lifecolour through Humbrol, the only time I ever had a re-action was Tamiya Spray over Humbrol Enamel, but I would test any paint combination on some scrap plastic before your kit, well worth the time.
Good luck will your modeling, feel free to E-Mail anytime
aleitch@twcny.rr.com
Andy (SGT US Army)