I think (contrary to what I thought) that REINFORCEMENTS are NOT treated as specialists troops, although I don´t know which training (= how much experience) they are supposed to have. So, if you build a RESERVE division with specialist training, it will start with 30 exp. (or 25 exp. In DI). However, depending on you conscript laws, it will get from its very begininng more or less men (depending on your conscript law). When you mobilize (or when you get a higher conscript law) your exp. gets lower. That can only happen because REINFORCEMENTS are not treated as specialists troops by the game (even if you happen to have the specialist training law enacted when you mobilize). I thought that if you had specialist training enacted, you´d get reinforcements with 30 exp. (or 25 exp. in DI), but now I see it´s not the case.