On the subject of Skyblock, I believe that it may be most beneficial to have a collection of custom islands built by an panoply of MineCrax players as it is a way to convey creativity and stand-out from the crowd-who normally use standard island. Dependant on the islands' content, it may be a good idea to put a reasonable price to obtaining these islands, as a way of balancing the 'head start' as a result of the islands' content. Furthermore, I believe that these islands shall be determined by voting, preferably top 3-5 go through, as it also allows everyone to have a say on the server's development as being 'veteran' players.