Generally, my group finds the various rune/length rules to be fairly interchangeable for our play. using false runes play to x number of runes We also don't normally specify an ending turn number: just play until we're done. I like the idea of putting a Dragon Throne right in the middle because it would really start to turn into a "king of the hill" style of game, with people clamoring over this one area of the board. I guess my group just tends to play expansionists because I've rarely had a problem with little player interaction or the game ending before it starts.