we came in at a rediculous angle and I had to fight every instinct in holding the slip to maintain the descent rate,
Two things you need to remember.
First, in a sideslip, the wind noise is very much increased and there's a lot more turbulent air hitting the control surfaces. This sounds and feels scary but is perfectly OK.
Second, don't trust your ASI. And depending on the installation, the ALT and VS too. Wind is blown into their ports sideways instead of as-designed, so their readings may be completely off.
Sideslipping is almost completely done using outside visual cues, particularly by keeping the nose well below the horizon. You will want to experiment with sideslipping at high altitude to know what it should look (and feel) like, before you try it for real at low altitudes.
than dig a wing tip in.
Actually even your average low-wing GA aircraft would need a very significant bank angle before the wings dig in. Unless it's a multi-engine or a glider (with centerline wheels only).
But in the average single engine GA aircraft, you probably will not be able to reach that bank angle by sideslipping - you'll run out of rudder authority well before.