LCSummers, it doesnt have to be, thats just the way I do it, you could just use the one main layer and work on that, the panel layer will still come through as it's implemented at game level anyway, the weathering still needs fixing though, hence why mine are pre-weathered
I dont do it right, i dont do it wrong, I just do it my way (there's a song there somewhere) and that's it really.