Good tips! I dont do switch kicks anymore after switching to southpaw unless I'm doing padwork and my trainer forces me to but I rarely do it in a fight. I feel that simplicity is key and I only use my back leg for the round house kick and use my front leg to control distance teeping to the body and legs. They teach the same in many gyms in Issan. A lot of people say its just a southpaw thing but even if your orthodox you can do the same like Singdam and Superlek.
Sometimes the more complicated you make things the more likely you are to make mistakes and a switch kick can be telegraphed like in the Superbon/Sittichai fight which got Superbon knocked out.
I like to keep things simple. Its kinda like the quote bruce lee used "I fear not the man who has practiced 10,000 kicks, but I fear the man who has practiced one kick 10,000 times"
Not saying switch kicks are bad by the way. Switch kicks can be extremely effective especially if your a southpaw going up against another southpaw or orthodox going up against an orthodox fighter but I think it comes down to what you feel comfortable with. Buakaws switch kicks back in his K1 days were beautiful and explosive!