Not sure how helpful this is, but here's a video I posted a year ago of when I groomed Scottie.
https://www.instagram.com/p/BMHS-_ABV0c/
These days, I've been bathing him with shampoo only, then towel dry, and using a diluted leave on conditioner while combing out his hair. Because his hair is so long, by the time I'm done his hair is all dry.