Fuel Tank question

[Buffalorider_imp]

All of the glass tank maker have warnings about ethanol. It is a real problem here and I just had to replace a three year old, lightly used chain saw because the compression was shot due to ethanol. The small engine shops and even my John Deer dealer have warned that it is killing engines. I did find two glass tank makers who state that they line their tanks to resist ethanol damage but that high octane premium is still advised.
My concern is a glass tank being more susceptible to impact damage. A minor ding is annoying enough on a metal tank, I would not like to have to deal with a cracked glass tank and fuel leaking.