Splashdowns: An underused method of landing?

[Evanitis]

8 minutes ago, Nightshift83 said:

But maybe it was that the mass of the whole thing pushed it too far underwater (is that even a problem, never done any submerged stuff ?).

Nope, it isn't. The surface is definately the most dangerous part of water. Reference.

[wumpus]

Note that hitchhiker modules are fairly quickly obsoleted by either mark1 or mark2 crew cabins.  Mark1 take two modules to hold 4 crew, but are lighter and vastly stronger (the mark1 modules are wildly cheaper.  Mark2 are similar in cost, lighter and vastly stronger)  .  The only real downside is that 1.25m parts make the whole rocket more flimsy.  I'm not quite certain when you get each item on the tech tree, but you should be pretty far along before you start carrying groups of 4 kerbals at a time.