UBERTI HAMMER CHANGE?

[BUCKEROO]

HAVA COUPLE OF UBERTI .45 CATTLEMAN. WITH AGE, ARTHRITIS AN STIFFNESS IN MY HANDS ITS GITTIN REAL TUFF TO PULL HAMMER BACK WITH MY STIFF THUMB. COULD I PUT BISELY HAMMERS IN THIS FRAME? IT WOULD REALLY LOWER ITS POSITION HOPEFULLY MAKIN IT EASIER TO PULL BACK TO FIRE POSITION. ANYONE EVER TRIED THIS OR GOT A SOURSE OF LOWER PROFILE HAMMERS?
THANX, & HOLD CENTER.
BUCKEROO