Just started chunking for stripers in the back last spring and have had pretty good success thanks to freds fishing show, becuse I never would have tried it if I didnt see it on tv. I noticed that some days I will fish in one spot chunking away with the clam bellies for an hour and get nothing. A t this point I will pull up the anchor and try somewere else. I think an hour is enough time and sometimes I will pick a spot and catch within 10 minutes or not at all again.sometimes wonder after I leave the first spot if I would have stayed another 5 minutes if it would have turned on especially after I justed chummed or wasted 5 lbs or whatever of chum. How long do you guys chunk in one spot in the back?