Calling raises with suited connectors...theory question

[HoldenFoldem]

I often see big pots won in high stakes games , and the winner is holding suited connectors. Truthfully, i don't recall whether he raised first in with them or jsut called down a raise and caught a good hand.

Is it correct to call raises IN POSITION with these types of hands ie 89s, 78d, J,10h ?????

I have tried it some time ago, with some success, but i was not convinced it was a sound thing to do longer term,as you seldom caught a hand, and then often couldn't get paid off with it.

Thoughts please...