I use TTW 2.8.1, TTW Vurt's merged (Lite Fo3 + Lite NV), NMC's cleaned with Roy's scripts and this combination produces exactly zero tree lod issues on my end (I got 90h played probably split even between both wastelands).
It is worth noting I had tree lod issues until I installed the TTW merged vurt's, and I didn't test the dead/forested variants, because after seeing the lite versions work I didn;t want to mess it up again.
