I have a question raised recently when reading of a technique Marc Sommerfeld uses when using his raised panel set. His set is height matched enabling him to use one router in his table. He can set the height of the first cutter, and then swap the other cutters without changing the height. His bits bottom out on an o-ring placed in the bottom of his collet. My question is, are all the top name raised panel sets height matched? I am specifically looking at the Whiteside set 121. Whiteside is American made which is a major plus. But the advantage of Sommerfeld's set may outweigh that. Any input would be appreciated. Thanks John