It is arguably easier to raise these guys on the center/island. Before you hatch them on the Center/Island, you need to fill your obelisk with milk, so you need to bounce your character between servers rather than using different characters for each server. If you stick Wyvern Milk in the obelisk, it won't spoil. So pre-hatch fill it up with lots of milk, and every time your wyvern needs fed take one out. If you are going for a high imprint it's important to remember that comfort food imprint does fill their food, so check what kind of imprint it wants every time before feeding it, to kill two birds with one stone.
I got a level 150 lightning egg and I was so excited to hatch the egg...that when I went to put the egg down I accidentally ate it instead. :( ps4 users: R2 ISN'T GONNA DROP THE EGG YOU'RE GONNA EAT IT LIKE ANY OTHER EGG. REMEMBER THIS. LOGIC BEFORE EXCITMENT.