I am thinking about a drum sander for my shop. Woodmaster has come up quite a bit in the searching I have done online so far. To you guys that have one was it a good purchase ? If you had a chance would you buy it again ? The biggest question for me is the drum speed (750) rpm . All other drum sanders I have looked at have been faster 1000-1500 rpm. Does the speed work well? Is Woodmasters claim that paper lasts longer at this speed true? How is the build quality ? Also I am wondering if they are UL ,CSA, ETL listed. Thanks for any info ,Mike.