Worth it
"Ever since buying my rupes lhr mrk 2 4-5 years ago I’ve tried different mods to improve the user experience. This backing plate utilizes the same idea as using a washer to suspend the backing plate but adds to it. There have been many aftermarket backing plates I’ve tried (most notable being the excel backing plate) and used for several years and was contempt with the increase in performace. It wasn’t until my excel backing plate which was discontinued broke where I needed a replacement. Even though this is more than double the cost it’s with it. No need to use the machine over speed 3.5 as it has so much more torque and speed. This may also be due to its smaller surface size and metal (maybe aluminum) construction. It also makes the machine run so much smoother with way less vibrations. If you own a Rupes polisher that is compatible with this and you use it on a daily basis I would highly recommend this product. Do not use unless experienced in polsihing metal construction can damage paint.honestly if you aren’t proficient at polling it’s a waste of money."