OTW fan versions do not come in Asian fit yet (I checked). They do have the non-fan version in Asian-fit
https://www.buyairsoft.ca/accessorie...asian-fit.html . I can also confirm that unless stated otherwise OTW's (regular and fan) are not Asian fit.
Tacticalproductscanada.com carries a lot of Smith Optics stuff
With regards to the OP, I tried drilling the vent holes bigger and cutting the foam to exhaust more air. Also applied Fogtech, in humid days it will fog. Nice profile, but I still haven't solved the fogging issue quite yet.