I would guess that your extended pedal travel might have something to do with air in your lines after cracking open the system. I would do/redo a very thorough bleed and check again.

Or if the BMW techs are saying seems normal to them, could be just imagination.

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2010 Lexus RX350 still new
2003 BMW X5 3.0i w/sport package w/68K miles. (gone Thank God!)
2002 Dodge Ram 2500 4X4 cummins diesel w/198K miles, custom repo truck
2009 Scion tC w/46K miles
2007 Suzuki SV650 custom streetfighter
2000 Lexus GS400 w/165K miles