fyi, that’s how i had it on my rise gen1 and how i run all my shimano levers:
that way the tip of your index finger is exactly on the end of the lever. i can’t even imagine how you one finger brake on your setup. do you only grip half of the grip?
get a ispec ev dropper lever and mount on the brake lever mount, also brake lever needs to move way more to the right, you are supposed to brake with one finger, not all of them
better: use the 30.9mm one like specialized does. the framekit even comes with a 34.9 to 30.9 reducer. i have also long legs and am able to use a 210mm on a s4 frame. and i still have a few mm left (which i will probably use to add an anomaly switchgrade at a later date). 155mm cranks help too…...