I would welcome suggestions for finishing cottonwood paneling.  I’ve tried several good oil based finishes and all seem to work well except that they yellow and/or darken the wood.  The best I’ve found is Minwax paste wax over 3 sanded coats of poly, but that gives the pasty artificial “poly” look with no depth to the grain.  Is there any oil based product that won’t yellow or darken the wood?

Thanks for any help.