R&R has been carrying the limiters. They're not the best looking head, usually a little thin on paint, but apparently the hook eye offset and the hook quality are great for shakyhead. My 2 sons use them also and they're not missing fish.
Nick has been really tough to shakyhead lately. The grass is everywhere and has limited areas for shakyheading. In the cave, at both corners of the fence has been somewhat productive. Along the bank, at right angles to I24, about half way down, there are some large rocks that barely stick above surface. They are in front of a rock wall. Casting a shakyhead on the rocks and than letting it freefall has been good for 2 or 3 fish every trip lately. My youngest son boated a nice 4/12 lb er just recently. It has been one of the last areas I can shakyhead close to a bank. Also the roadbed in the cave area has produced. I'm sure there are a lot of other areas but I'm still learning Nickagrass myself.