Yeah, but BL GP is like some old track but it looks like some modern just built GP track. That makes it unappealing. If it was much narrower, all safety areas removed etc. and looked really like some ruined and abandoned track, then it would be great. Something like this "ruined BL GP" texture mod: http://www.lfsforum.net/showthread.php?p=134972#post134972
Yes, it looks too clean/perfect, often it is easy to make too good looking textures, too good looking shapes so they won't look real, I think this is what is problem with blackwood too. In nature nothing is precise or absolute, there is always some variance in color and shapes.