I have an HJC Symax flip front full face helmet and an HJC CL13 FF.
The flip front has alot more interior room around the jaw and nose and has less of claustrophic feel to it.
FWIW you'll get more bugs in your teeth with an open face helmet in combination with riding a Triumph but....... also I have come off and wiped off the chin bar on a full face helmet.
It would have been my chin if I had an open face !!
