Andre...
To be totally honest I didn't look that far up inside the tank so for all I know my bike could well have had a pin prick sized hole...
Humble pie has been eaten on my part..

I punched the hole as high up as a straight electricians screw driver would allow ON THE RIGHT SIDE of the filler..
If I am brimming my tank I always use my side stand now as the enlarged hole is at the highest point on the tank (nit picking I know).
Overall this simple alteration of a microscopic hole means I am 2 miles down the road with a truly full tank whilst un altered bikers are still dribbling a half cup at a time into the filler neck.
My original point was that without doing major damage to your bike you can make it much easier to live with.
Once again I stress that I only brim it to the very top if I am doing an immediate ride out..
The point is I now have the choice.
Hope this clarifies my original rantings..
S.