I started to pull the old wood grain off at one end, it was on there and not wanting to come off- used heat and still wanted to come off in pieces. So I cleaned it all really well and taped over it. It gave me a guideline to work with, and then new striping has been on quite awhile now with no adverse effects. The underneath black really wide striping was there from before, and just added to the look and blend of the new 3" stripe which is actually 16 stripes on one roll, that you apply all at one time. Black/silver/ and red center.
I got mine in 150' roll from a guy on ebay who was very helpful and sells quite a bit of this stuff. I have enough left to do the motorhome again twice.
here is one he has on there now
I want to replace the upper black 2" stripe that runs the length of the coach...but not yet found thick black in that size...still looking.