I took my youngest and his roommate toa gunshow at the Orange County fair grounds( soon to be gone, Thanks Arnold).
They were looking at off list lowers for an AR, we went to big seller and looked at all their lowers, I pointed out the differences in finish. Color, removal of flash, rounding off all the sharp edges and such. They decided to buy from this guy and did so right there.
As we were leaving I heard the guy use some of the same lines I told my sonon his next lookie lu.
Maybe I increased his knowledge or maybe my BS sounded good to him, I don't know but I heard less crap from them after that.