I have three sets, two complete one in progress; w512 & w513 (done), and am now working on w514. Took me about a year to acquire the w512 set w/Cobb variation (at a card a month), the w513 set I finished in two purchases one purchase of five uncut strips of five and then Earl Coombs to finish it in about a month.

The w514 set is another matter. The "monster" of strip card sets (ha, ha) I began this in July 2009 and am a little more than half way done. I buy a card (maybe two) a month. At my current pace it should be done, hopefully, in 2013.