Hi Jeff, if u searched around there are actually a number of applicants with 55 points who got invited but that too because their occupation is not in the pro rata list. If your occupation is in the pro rata list, chances of getting invited is very low. But who knows right. Things may change. Any way of bringing your points higher?
Pro rata occupations can be found in this page. As long as you don’t fall under these occupations, I guess your chance is there. There’s still dependency on the states and if they want to sponsor you. As to when you will be invited, no one can answer that.