I had a very nasty crash in 1973 that I have spoken about many times, the worlds first total loss 750SF1, it was six weeks old with 3500 miles clocked! I was unconscious for six days and in hospital for six months and had many operations, on the day they took out my spleen, one kidney, a yard of intestine (temporary colostomy), my appendix plus multiple stitched wounds, three weeks later they told my father that my right arm had to come off, he replied that not before a second opinion had been obtained, he never obtained that, and I still have my (albeit gammy) right arm. the kidneys problems never went away and I had a transplant of two extra ones four years ago.
The main point is that I didn't have any (visible) head/face injuries, the unconsciousness was inevitable and something of a deliberate ploy by medical staff as well, but when I saw my six week old full face helmet it made me feel sick, it was scarred and grazed all over, very heavily but the amazing thing is the visor was intact and holding not only all its fixing points but pivot points as well, the damage to the visor (only the visor) could be described thus, place helmet on a nine inch tree stump approx. two feet out of the ground, and then swing a felling axe with all your might, diagonally across it and collide, the visor held! but was heavily indented, it must have contacted my cheek and nose, we now think that was a track control rod under the front of the 26 tonne truck that had stalled in a country lane on an uphill (for it) section, I saw it, braked heavily and went down, 100% my fault, but as an aside trucks over seven feet wide are not permitted down that lane.
Full face for me and must be top of the shop, that one was an Everoak, second string at the time, I have since then worn Shoei Z100 (1986/7) then four AGV's and currently another Shoei.
CLEM