Previously I had 7800 brake and lever which worked great, I swapped to 5700 lever and 7800 brake and there was no power. Swapped to 5800 brake and it improved again. So if mixing r7000 lever with that old mid drop brake will be the same as 5700 lever and 7800 brake, that’s not satisfactory for me.
Shimano work fine with the older brakes, not like going from canti to v difference tho?