Only thing I can suggest is bleeding the pads closer to the discs to take up the pad wear, this WILL be a faff but if you really want to do it...

Get yourself a shim just a bit wider than your disc, insert this between the pads and bleed as normal, pads will shift out to touch shim, pistons will fill with fluid to take up slack and hey presto closer sitting pads.

Be warned you'll need to release fluid when you finally replace your pads.

Or, you could swap your pads out more frequently.