Here are the rungs of the ladder:
Dec 18th 98/101 short call vert
Jan 15th 96/99 short call vert
Feb 19th 95/98 short call vert
All of these have the short put set up around the 1 SD line for that particular expiry and are worth about $30/contract (give and take). Should gold rip to the upside, I'll go ahead and match these up with short call verticals to create iron condors ... . (Point in fact, I should have sold GLD via short call verts, laddered or otherwise, on the rip to the upside, but got distracted by other plays ... . Oh well, can't catch everything.).