Hi could anyone tell me what is the best fiberglass system to use as im at college at the moment doin advanced nails and we are going to be doing fiberglass which im really p***** off as i really wanted to learn acrylic but my tutor said she will do 1 night of showing us acrylic which ent going to learn me much in 3 hours!! Anyway how long do fiberglass nails last for? and are they strong? Thanks from Trudi