Having many hours at altitude while navigating my 727 from here to there with a high altitude chart, I still like the feel and looks of a WAC chart in my lap while flying the RV4. I did install an Apollo GPS in '91 since the sectional folding and unfolding was unwieldy in such a fast plane so I switched to WAC's, some of which I still have with my course lines in black. Much later I sprang for the Garmin Aera 500 which was a considerable improvement plus I could move it from RV to Pitts to Laser when the need arose but I still have my now well taped WAC charts.

When I stop at the FBO's along the way due to my two hour bladder I always check for paper in the john before sitting down. It makes me confident of the outcome.

Many cheers