Last time I put in at Jacks Bay we had to use the sand bar south of the ramp and it was tough. We fished the bayou up to dry lake with good success. I would say if the water color is good and its at a point you have to use the sand bar conditions are good. Now I could launch at the ramp but could not get threw a narrow sandy channel but that may all look different now with floods etc.. It was about 3 years ago. Contact Reruns Bait Shop in Dewitt and ask a few Q's he may can help you out. Good Luck.
"I HAVE FISHED THROUGH FISHLESS DAYS THAT I REMEMBER HAPPILY WITHOUT REGRET"