I get that double joints can provide flexibility more easily than single, but I've always thought single joints were far more aesthetically pleasing. Like humans are single jointed, so it looks more realistic and natural. I really don't like that square elbows look (although I grant that it can be done well or poorly). I much prefer other alternatives for additional flexibility, such as indents in the calves to allow the legs to fold further. Yet everywhere I go, people seem to treat double jointed as the strictly better option. Anybody else still a fan of single jointed?