about the faster turning in and gyroscopic effect :
When You pull hard on the handlebars and steer left, the gyroscopic effect will try to tilt your bike to the right, in the meanwhile You're steering your frontwheel from under your bike to the left, making it go right and ergo : faster turn-in.
The heavier the wheel, the more the gyroscopic effect but the heavier the wheel

I didn't find (didn't look for it either) of real mathematical proof about the forces and the best weight/effect ratio.
Another way to go is increase the distance between forkstem and forks, making the trail less.
Then the force to turn the fork/wheel becomes less, making it easier.
Reducing the trail minimizes the force that tries to get the bike back upright while leaning over, so this helps also.
BUT it has a BIG impact on straightline stability, making tankslappers a real treat (or threat, whatever fits You).
To stop this gyro-turn-effect-proces, reverse steps.
Practice and a wheelie through the chicane becomes easy, no need for 100+ hp.
A word of caution : just like drifting, it becomes an addiction

and just like drifting You WILL overdo it sometime but unlike drifting, the damage of sever case of understeer is usually hurting like hell.
have fun
ducadini