Probably you should gradually add 3 grams at the top hoop, then 6 grams, 9 grams 12 grams (initially start at 12:00 and gradually spread out till it's about 10:00 to 14:00)?
Occasionally when i grab my lightly leaded racquet (@3-6 grams), i can already feel the additional oomph without adapting to my altered swingspeed too much.
There'll always be a what, a where, a when, a why... Synapse is the how!
VcT 89 & [K]PS 88; WC TT 17L & Alu Pwr Ice Blue @63 lbs. Full string plane