I am wondering why both these dimensions are reset in the stoneblock2 mod pack. The mining dimension is used for some ores, but there is nothing else special in the dimension and there is no way that the resources can be depleted, The main reason most use the dimension is to build withers and to access the end where you have to dig up 250 levels to get there. You will have to dig up every time the dimensions reset and then redig the small area you use of a enderman farm or kill the ender/chaos chickens, which is pretty much all you use it for, the minimal digging you do in both dimensions really does not effect any other player. I recommend both dimensions not be reset. The only thing I can see is if a players base gets deleted due to inactivity then those other two dimensions should have similar claim automatically created so a reset will effect all dimensions.