i have never had the canvas of any top ever leak. it was always the seals. canvas like this, by its very nature, is waterproof, as long as you don't touch it.
i'm not a fan of putting anything on the top. it tends to cause uneven discoloration over time.
the top design on this car has always been a gripe of mine. if you use the boot cover, as you should, it's a royal pain to put the top up and down. i shot a video very early on, showing the process, and how long it took. even a $10k mustang had a better design.
unfortunately, there really is no better solution out there. any tonneau will have sags, which will cause puddling, which will ultimately dump into the interior. i even designed and had made a full zip up tonneau cover, but it would have the same issues.
this is exactly why i had a zip out rear window installed, and gave up on having the top down most of the time. ultimately it forced me to buy the targa. man, i sure miss that car.
94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating
www.968forums.com
"It isn't nearly as expensive to do it right as it is to do it wrong."