The thing about waterproof gear is, it seems to work for one person and not for another. If one person says their (pick one) First Gear, Tourmaster, Cortech, Olympia, Aerostitch, Frog Toggs whatever gear has never leaked a drop, a half dozen guys will chime in they tried the same outfit and they got wet...yes even with the Aerostitch Roadcrafter.
Year before last, I rode a bunch of canyons and mountain passes with a buddy in Colorado and we rode in quite a bit of rain. I used rain gear over my Tourmaster stuff, he had all Gortex stuff. When we pulled into this garage at the end of the day I had to hang up my wet rainsuit, and and he had to hang up his wet goretex gear. We were both fairly dry underneath but all outter gear was wet. The advantage he had was not stopping to put on an outter layer, but as long as I did, I stayed just as dry as he did. The disadvantage he had, was at the end of the day his outter gear was wetter and heavier and took longer to dry out than my rain suit.
After 53 years I'm still not sure which is the better way to go, over gear or gear that is "advertised" as rain proof.
If you don't think your gear leaks, wear a light grey T shirt and light grey sweat pants and sox under it while riding in a rainstorm. You will easily be able to see where the moisture gets in. If at the end of your ride your T and sweats are still light grey everywhere, you have some good gear. If you see dark grey spots, guess what? Your gear isn't waterproof.