HELP! diy project gone bad

Like you I removed the OEM carpet/linoleum from our 43' 5th wheel, and installed vinyl plank flooring. Ran the slides in and out carefully the 1st time and saw where some faint marks were visible. To solve the problem, I made my own "slide planks". I used some spare vinyl planks from the flooring job, and put heavy duty rubber shelf liner strips (cut to size) under the spare planks to keep the "slide planks" from slipping when the slides are brought in and out. When I'm ready to bring the slides in, I set these planks down (with shelf liner between the loose plank and the vinyl plank flooring). The faint marks the slides originally made show me where to set the "slide planks" down (there is always a silver lining somewhere). When I move the slides out, I pick up the "slide planks" and store them under the bed. Works like a charm!