There are limits to how far GWX is "meant" to be played, as BBW said its supposed to be that way for the reasons given. However you play your game though, is entirely your choice though.
It is a pain you are right, if you are saying its a pain, then good.... sorry lol, but good in as much as its doing what its meant to....As far as this change is concerned I doubt anybody made more vocal their disagreement about the tail removal than me. lol I even went as far as to call it an "arsehole thing" one night on team speak.
However... I stuck with it and still have it now. It really does add to the immersion of having to guess roughly which way they are headed. If you find it a pain in the arse, congrats you have felt similar feelings to how a real U-Boat commander felt. The only thing is, they never had such accurate data to begin with. We did, which is why it smarts like it does when they go.
Give it a try and see how you get on.
Welcome to subsim!