jig & pig bite

This year I'm gonna concentrate on the jig and pig and the drop shot.This
year on the jig I've caught a 6 lb-14oz and a few 2 lb'ers.The bite is just
a tap ,like a worm bite ,but not a worm bite either..And I always have to
reel like hell to catch up to the fish because everyone of them has headed
for deep water,right at me. Is this a normal bite ?? I have always heard
that the fish caught on a jig end to be a little larger but I'm not sure,
although the fish I've caught this year have been a bit larger. Hell , now
that I think about it, every fish I've caught was a keeper.
Anyone willing to give me a few hints on this technique??
Thanks in advance
Ken