Modifying FS3 Stock Hori Stick?

My bro has a hori fs3 he doesnt use at all so hes giving it to me for free.
I want to mod it to use it as a back up/beater stick. I read that its alot of work to mod it to get a sanwa stick in there, pluse you have to use the stock switches anyway. My question is, Can you do anything to the stock stick other than a swap to make it feel better?