Well, my eyes are not what they used to be. Or MaxFire is not strong enough to easily reveal swirls to those of us that don't have best trained eye, especially when used outside. Or both.
In any case, are you aware of anything (easily portable) that would be even better / "stronger" in revealing swirls than MaxFire?
In any case, are you aware of anything (easily portable) that would be even better / "stronger" in revealing swirls than MaxFire?