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It's not really overfilling, just back all the adjusters out and instead of using the standard width bleed block, use something skinnier. This bring the pads closer by default so you don't have such a long lever throw before brake activation. It might mean your brakes rub early on but that's the price I pay for better feel and not bottoming out the levers towards the end of the brake pad life.
If the bleed is done properly, the front and rear pads will move immediately on touching the levers. I don't notice any difference on the Mason. The Kinesis is a bit squishy on the rear but it uses the old levers and was last bled ages ago and they were also fiddly and needed overfilling to avoid the massive lever throw requirement.