This question is for persons who reside or spend time at altitudes higher than 6000 ft ASL. Does anyone do anything differently when making a lather such as more or less water, hotter water, cooler water, etc.? I have a second home which is located at 7300 ft ASL and noticed the lather just isn't the same as my primary residence which is 900 ft ASL. It seemed to have quite a bit of air bubbles in it.