best price for Wiseco piston?

yeah when I did a search for a 0.050" (1.25mm) over, rj was the only one that popped up... I've been @ .040" for years now, not sure if .050 is enough, but trying to save this cylinder as long as possible... .080" is max available, right?
 
yeah when I did a search for a 0.050" (1.25mm) over, rj was the only one that popped up... I've been @ .040" for years now, not sure if .050 is enough, but trying to save this cylinder as long as possible... .080" is max available, right?

I thought max available was .090 ?