best balence job is weight on both lips. second best is back lip and sticky in the middle section in the back side. just make sure thay clear the calipers first before sticking on and then ripping off first roll.
then a tire that size 5-6oz is getting to the high side. but i would watch the tire and the tread as it spins on the balencer. the smother and less wobble it has the better the tire and you can give in on a higher weight if it needs it.
i have balenced some big tires before and almost no weight and then 31" needs a weight amount almost fit for a 38 and up. but both have still road like a dream.
best rule is how does the tire look when spinning. that will be the key for a good ride. as i have been balencing tires and auto mechanice for over 8 years.