Request. Does the Technics SL-1200MK7 hold a mix all the way with 2 different tracks/real time mix 

I've been requested by some of my viewers in the comments of my last test video of the Technics SL-1200MK7's to mix 2 different tracks to see if the turntables can hold a mix all the way to the end of the tracks without drifting. In the last video I used two records of the same track to see if the 7's drift or not till the end of the tracks. They held all the way to the end. This time as requested, I've done real time mixing with two different tracks. Watch to see the outcome.