TWO newbie questions??

[Bob in OH]

Having just snagged three Mauser lugers...I am trying to prioritize their quality.

Q1. In short, whould you rather have a piece with a matching mag at 85% or a 95+% gun with m/m mag??

Q.2. I read about "straw" and assume this is the percent of buff color remaining on the grips? is this correct? and how desirable is this in assessing quality?