If you take the rubber scrubbers out it solves the problem and allows long straw to be added without a tangle. H "SANCO Enterprises, LLC" wrote: > >Paddle type mixers > (concrete or plaster) work well to mix cob material when short length straw > is utilized. When long straw (as most cobbers prefer) is added, the straw > becomes tangled in the paddles and very little mixing is accomplished.