On a related point, why does your shoe/cleat combo need longer bolts? Is the cleat thicker than Shimano SPD cleats, or is the sole thicker than usual? I've used SPDs for many years and have never had this problem with any brand of shoe. I [naively] assume that shoe and pedal manufacturers license the design from Shimano and thus have a standard specification.
On a related point, why does your shoe/cleat combo need longer bolts? Is the cleat thicker than Shimano SPD cleats, or is the sole thicker than usual? I've used SPDs for many years and have never had this problem with any brand of shoe. I [naively] assume that shoe and pedal manufacturers license the design from Shimano and thus have a standard specification.