I am looking for a new helmet, of coarse my really nice motorcycle helmet won't work for racing. So anyway, I wear glasses which can be a fogging issue. I am concerned with a full face helmet with face shield that there won't be enough airflow through the helmet to keep it from fogging up. Anyway I ran across this helmet from G-Force which is full face but with no shield. It says its for people with glasses. Does anyone use one of these? Are there any issues with this type of helmet? Give me your thoughts.