Cz, I had a suggestion and didn't see this thread till now. So this is a repost of that suggestion. I will modify my original post to point here.
Anyway my suggestion for maintaining the value and usefullness is this. Change the HUD slot that the LLTS goes in. Perhaps reduce the initiative penalty on the LLTS also, though you might want to leave the init penalty as is, assuming that the reduction in crit chance is for balance. This way, you could wear both a VE and a LLTS and get the crit chance for both, but at a greater init penalty, and you would also have to invest some additional ip to get both on. This would also give a top end of +16% to crit with two top end scopes, which would also help to preserve the value of the old LLTS. Hope that helps.