Thanks for the feedback, Gooseman!
If you want to try it out (that's what it's meant for after all), better install a second clean game version alongside your main one, it takes only a few hundred Mb hard drive.
That's what I do to mod whatever I want while being able to play PBEM games.
As for icons, well, many of the ones I included will need a facelift at some point, and I'll probably make my own replacements for some original ones so I can add my own modifications to them (eg some fictional LAV variants). The Abrams looks good enough for me right now (just like the Leo2, except for the latest variants), in any case good enough for me not to make an attempt at redoing it!
I'm not sure I can help you for winter icons, I'm in a bit of a conundrum in this domain: this is where you really run into the limits of camoed icons: the contrast is so high you end up not seeing them properly. At the other end of the scale, you have winter icons with a dirty greyish white color that just doesn't make it.
There are some winter series I'll have to redo in the near future, I'll tell you then if I can come up with a reliable technique.