Storm Trooper conversions turned out, with one exception -- using the same head and very similar coloring to my Great Coat troopers, the melta-gunners are frequently going AWOL in the infantry platoon. I also feel the need to give the ST's a slightly more armored look beyond the leg armor. Solution? Instead of the Pig Iron Militia Winter heads, use the Covered Helmet heads. Side by side after the break
Here they are side by side.
I do like the high tech look of the targeter on the side of the helmet -- another plus for the helmet. I also think with a minor variation using Cadian arms I could do a credible Steel Legion using these helmets.