I prefer 3/4 oz just for rigging most days, moving 0.3 to 0.5 mph. 1 1/2 oz egg sinker with (2) 1/4 oz runners gets you 2 ounces of lead, I wouldn't run that no more than 1 mph (0.8 or 0.9 preferred) lines be under the boat otherwise. The faster you want to go the more weight you will need to keep your lines at a decent angle. Get a variety of weights on sinkers and road runners and experiment, a 2 ounce weight this time of year would be a good in between for starting off with.