Olin TechnologiesLogo Design Contest

I like the three designs, but feel tht there is very little weight in the font.
also can we see something with a shadow?
and in the design 30, try the letters in plain blue?

Thank you for your feedback, very helpfull.
ok. i'll try #30 with letters in plain blue

regards
heru

test for multicolor background

(This comment references Entry #41)