A friend is working on his Amals & ask me to post a few questions for him that he wasn't able answer from them or thier website. #1, Does anyone know if the Viton tips on the new needle valves are made with Viton type ( GF) apperantly there are many differant types of Viton & he thinks that the GF type is the best for ethonal laiden gas. #2) Amals site says we may have trouble with the Brass needle vales being to heavy & suggests we use the alluminum ones but the kits don't come with them, is this a issue? Has anyone needed to use the Alloy ones?? #3 Has anyone had trouble with the new stay up floats disolving in Ethonal /gas? I forgot the name of the material they are made from, but whatever it is does anyone know if it's the type "M" of that foam? Thanks.