So many workshops I've taken teach one to always and only make a color string with your pallet knife by mixing up separate and distinct puddles. I always found this felt uncomfortable and delaying because I instinctively mix my color strings the way you have shown, and with the brush, and not fully mixed but with some lively variation. So validating to see you doing so... yet not to say my instincts are always spot on!
Thanks so much for the detailed technique videos--this and the one on brushstrokes, in particular. Very helpful. Looking forward to more from your channel in the future!