Bob Flynn who I bought several cues from prior to getting interested in building them myself used a tung oil finish and it looks pretty good hot off the press but is softer and ages less well than some others. One cue I have played lightly with over the years and the finish is getting milky looking. Another one I have played with a lot and it's beat to hell with what I consider normal use.
Bob is in his 80s now and as far as I know cancer free so did he make the right choice? HIs cues play really well BTW, he's the one who ultimately inspired me to build full core cues. Every time I shot with the cues he made I thought yes, this is the hit I like. Thanks Bob if you read this.
JC