Received a pastel albino boa constrictor in shed.

[TRD]

I'm all for letting the snake do it's thing and helping only when required. As you say, you are setting the humidity and temp up as they should, he'll do fine in no-time. A good shed cycle is started before the actual signs become visible, snakes take up the required humidity before turning blue, not during.

And welcome to ssnakess