the old design was good, but in my opinion it was lacking in terms of grip. the new design is prettier (personal opinion) but still lacks a better grip. I believe that's why many users wrap the lantern with rubber. a more aggressive texture, elzetta bravo or surefire 6p style would do well...
head mdc cr123 with 2AA host = ok because each AA is 1.5v 2x 1.5v = 3v head mdc cr123 with 1x 16340 or 1x 16650 or 1x 14500 or 1x 18650 = NOT ok 1x 16340 or 16650 or 14500 or 1z 18650 is 3,7v 3,7v > 3v