I have an older Weber rotisserie that has tabs sitting on top of the rim of the kettle. It's not air tight and there is a huge gap between the ring and kettle. Does anyone here have the newer rotisserie kit tell me if it's improved any? Also my Weber performer has the nuts on the lid holder sticking out where the ring will rest on those bolts. Did Weber make cut outs for the kettles with lid holders? Thanks in advance.