All I think is what happens is keep mark exchange like you said, but aet-up a glimmer exchange as well. I don't need marks or rep, I get it from strike playlists. U have no more general vault space so I. Either clutter my characters with unwanted materials or discard them. I don't need them but I collect them just b/c I can. But when I run out of room, it sucks. I like glimmer to buy synthesis from gunsmith. Please bring back material exchange. My pocket is clanking too much bow. :(