I need a little help with proper hand placement on the controls. For the last 30 years I have trained myself to ride a dirt bike in the attack position. My clutch side I always have two fingers on the clutch and one finger on the front brake.....always. It seems to me in the corners it may be better to let go of the front brake to have better control of the gas. I'm really not sure, but after all these years of always having a finger on every control I can not seem to override that instinct.
It's funny you mention it, but being a "dirt bike" guy for many years, I too had to retrain my muscles, to keep my fingers from covering the controls! You WILL drag the front brake if you don't kick the habit. At a minimum, train yourself to rest your finger on the brake lever pivot instead of the lever. I know the problem your having has to do with modulating the throttle during aggressive riding without resting your index finger on the lever. It feels unnatural. This is the evil side of muscle memory for us dirt bikers. You can overcome it if you are consciously aware of it. Keep practicing and you'll get it. I got chewed out at my initial MSF class for this, LOL!
I raced mx for a number of years as well. I too rode in the "attack" position. I don't have an issue with the front brake lever. However, my issue is getting my arms to be back down more by my side instead of up in the air. Got wings? lol
Don't change what your doing. Just learn to rest your two fingers on top of the brake and clutch levers. Not really around them. I learned in road racing: two fingers for throttle control two fingers for brake. It becomes second nature. This really cuts down reaction time for grabbing the front brakes. Specially when in traffic/city riding. Helps big time in cornering. It's all really mind over matter. If you don't mind, it doesn't matter. The handle bars are not there to hang on to, but to lean on to keep your face from hitting the dash.
Going back through time... I do this same thing and can't break the habit. Uhg, how I miss racing dirtbikes - freaking injuries will hurt your time in the game! BUMP!!!