From a previous reply to a person who made a similar comment: [quote]10:1 materials for marks + 1:2 marks for materials = 5:1 Mark for Mark Since each mark you gain adds to your 100 weekly cap, yet the ones you spend do not subtract from it, you would have to max 1 type of mark for just 20 of the other, which would leave you unable to gain anymore of that 1st type for the week. Thats a pretty steep cost. [/quote]