I am happy that You like it. I am shooting with Tele-Tessar 4/350mm FE with permanently mounted Leica Griffschale (for R-lenses). It is very comfortable to use then, but I lacked a grip. If shooting vertically (especially with such large lens) it have to be very useful, as You refereed to me.
Your portrait work is simply outstanding! There is so much to read into each face you put up here. Love them all !\n\n\n
Thanks man, I really appreciate the positive feedback