The three I like in order are:
1. SXK Shift : excellent flavour, no leaks (ever, unless you store it upside down), good reservoir of fluid, 22ø;
2. SXK No Toy : very good flavour, no leaks (unless you over-squonk), small reservoir of fluid, cuts the o-ring, 18ø;
3. Origen Little or O16 : very...