When I bought CS stock for my MK4 I was slightly miffed at the finish no issue with the workman ship just the finish.

I sent it to a chap who was in his younger days a cabinet maker who striped it right down and re-oiled it and there was a marked diferanc. Sadly for me he passed away a few months ago half way through one of my Regal Stocks.

I use boiled linseed oil a single clad twice a year keeps them in tip top condition.