Get what you think you can use then get some more, don't make the mistake I did. A couple of years ago I had all the WW I could use and then some, as a local garage gave me about 15lbs a month. Then the guy I dealt with left and I now find I'm unable to get ANY WW at all. I have a couple hundred pounds of lead and about 40lbs WW and that's it. It's impossible to find any WW up here now. Do yourself a favour, GET SOME MORE.