Thanks Roger for that.
Have cut the channels now and gave it another quick press.
Shall do another one tonight to get better contact...
I painted the polishing tool with a epoxy paint which worked well with the tile tool but doesn`t seem as good with the resin. Must be the volatiles in the resin stopping the paint bonding as well especially where the hot resin ran down the tool sides.
Shall post some pics as soon as I have it ready to start polishing!