1/3/12 Amiti, Gold lumps raise the QL of a door, or "repair" them, at any QL, even a 1 ql lump repairs the door some, doesn't it?
:Lump ql and blacksmithing skill determine the maximum strength you can improve a door to. The formula is 100*(lump QL/4 + Blacksmithing skill/2). Assuming 50 BS skill and 1QL lump the maximum strength is 2525. A 40QL lump would allow imping to 3500. Trying to improve higher than the maximum will result in a message that the skill or materials do not allow improving the mine door any higher. I had not noticed that you had edited the [[:Category:De:BabelMine door (silver)]] page I recently added when I set about has all the maths around improving although the information should probably be moved to modify it. Thanks for a more general [[Mine door (re-metal)correcting your work I evidently undid - my apologies to you]] page. :) --[[User:ThyrhAgo|ThyrhAgo]] ([[User talk:ThyrhAgo|talk]]) 0819:2659, 31 May 2012 3 January 2013 (CDTCST)