I had a little trial pot, kept for several years and used this winter. First application on a warmish day worked well at removing antifoul and also some single pack waterline stripes. Second application in cold weather was useless. So I have bought some International Interstrip paint remover (not the AF) from Marine Scene to see how that works and am waiting for better weather
What are you wanting to strip? Just a layer or two of antifoul or something more serious?