Hi, i googled "dot 5" cuz to be honest i had never heard of it....
I found several other forums (car racing,hot rodding, motorcycles),
-that say dot 5 gives you a spongier feel when applying the brakes.
-that mixing dot 5 with dot 3,4 or 5.1 is bad. (3,4,5.1 are glycol based, 5 is silicone...