Wolf-Garcias is right, use iso-blocks and save your money.
Quad racks use a series of curves that seem to work, cork and rubber is cheaper.
Personally, I wouldn't take a Mapleshade if it was free, whatever good that may be done is by the points and iso-blocks they tell you to use with them.
Quad racks use a series of curves that seem to work, cork and rubber is cheaper.
Personally, I wouldn't take a Mapleshade if it was free, whatever good that may be done is by the points and iso-blocks they tell you to use with them.