William is a show type with quite a lot of coat. I like to keep his coat quite long but I use clippers to do his armpits, under his tail, his foreface, the insides of his ears and his throat down to his breastbone. I keep the rest of his coat vaguely under control with a mix of hand stripping and thinning scissors, plus ordinary scissors for his paws and tail.
His armpits are the worst area for matting, and also his skin tends to get a bit pink and sore there, with little spots sometimes, so I try to keep the hair very short there to keep the area cool. I think scissors will do the job just as well as clippers.