Iv played around with all kinds of fancy rigs and tested a lot of them on various commercials and also in my fish tanks! The one that has always outdone all the others was a standard bottom bait on a knotless knot with mono (always seems to outfish braid for me) and a small bit of silicone to keep hair in line with the bend of the hook in the same way as you did (with the line whipping down the shank.)
I think unless it is a very heavily fished lake with wary carp the best way to catch is to keep it simple, you wouldnt believe some of the rigs iv pulled out of lakes! Sometimes I just wonder what the point of them all is!
