GM-GMC: Brakes stick, rust deposits, axle shafts

Question
I have a 99 Silverado Extended cab Z71 4x4, 5.3ltr Auto Trans with about 167,000 miles on it.  I recently replaced the front brakes (rotors, pads) I cleaned up the calipers with a wire brush to remove the rust deposits and then coated the sliding areas of the calipers and pads with "disk brake quiet) assembled all components minus tires (bolted rotors to axle shafts) and hooked up a power bleeder (filled with New Dot 3/4 fluid, clamped hose to caliper) to remove all air after opening bleeder while pushing pistons back in with out affecting ABS, and ever since then when I step the brake it feels as though they stick for a moment and seems to be worse when warm (after using brakes in a rush hour scenario) I have also noticed my mileage has gone down, guessing from the brakes hanging/sticking all the time.  
Only repair I can come up with is to replace calipers and pray.  Any input would be greatly appreciated.

Answer
the only thing i can say is that the calipers need to be rebuilt sounds to me like the boot is sticking. thats a fairly affordable repair and you can buy kits to do it yourself.

as for the mileage i really couldnt tell you why it would go down.