i use to fish with glass rattles alot , in flukes and senkos , there at one stage was Grubs , i think mogabos with small plastic rattle that you put in a premoulded cavity in its tail , the problem was that they didnt give you enough rattles for the amount of grubs , and it was not a standerd glass rattle like lot of guys know and use .
Rattles are a sure way of gettin more strikes , on windy days you will get more action in my books.
better ask some of the other 'pros ' that prowl around these here parts .
my 2 c