Wacky rigging - Is it really less productive than T-Rigging during the summer?
No.
Even though there are no absolutes, you have answered your own questions, the devil is in the details:
it seems that I am getting more strikes on a 3/16oz t-rigged presentation lately
The detail is: that 3/16 oz sinker
My largest fish in my tourney this past weekend was caught on a ultra vibe speed craw with a pegged 3/4 oz tungsten sinker
The detail is: that 3/4 oz sinker
So details are telling you that a slow fall is not the ticket, it 's not the rig what 's not working, it 's the rate of fall, nowhere is wirtten like if were a commandment that a wacky rig should be without sinker, no sinker is one of the ways but not the only one.
So back to the original question the answer is NO, a wacky rig is not less productive than a T rig, your application of the rig is the one less productive.