How the heck do you do it? I have read about it online and it still doesn't make sense. I end up stabbed, bleeding and cursing. Today I have a swollen forearm (I'm calling it my Popeye arm) from being stabbed really good by one rogue thorn.
And the bushes don't look that much better...although I went through this last year and one of them came out pretty nicely and bloomed more that it had in years.
I make some of this stuff up as I go along...pruning would be one of them. I'm not that into gardening, can you tell? It goes into the category of "things I'd pay someone to do if I was rich"!!