For Xp weekend, I decided to make a lot of herbs and seconds I have lying around into pots. This will take roughly 1 hour. For the rest of the time, I have no real incentive to train something. As I was training construction for the shattered heart rocks, I ran out of planks. These are currently unbuyable in the GE, so I decided that during XP weekend, I might do some lunar plank making, then using the planks for construction xp. How to tackle this? What kind of plank to make? Oaks for fast construction xp, or is mahogany better? How about the costs? I'm currently buying astrals, but I have time to RC some more if I can't buy enough. I have several K of every log that I can use in construction (oak, teak, mahogany).