I've never, ever done significant construction underwater. On my SP world, the most I've dealt with underwater is when I get lost in a massive cave and want back out, so I start digging up and eventually break the surface... into water, and have to clean up.
Everything you're talking about is completely foreign to me.
Not to mention, all of my concentration is on my city right now.
In a sort of segue between our conversations, however, for everybody else - there is now minecart system leading all the way from the spawn point to my giant stargate. It requires a transfer at my little peninsula station, but other than that, transportation is vastly faster and more effortless to get all the way up there.
SW-5120-1900-6153








