gi chokes are transferable to no-gi. you just have to improvise grips and use your or his arms as the gi. in that sense - gi makes you more creative. But gi is also terrible with some stuff like watts said - because dominant positions in gi are easier to hold and adjust because there more grips than no-gi, so when you take the gi off it gets harder to take grips. on the flipside, gi makes you escapes sharper as theres more friction and more reliance on technique rather that sweating and slipping out as well as you opponent being able to hold on to you easier, so you have to execute damn good technique to escape. I like Sketco's Idea. Training both gi and no-gi is essential but in specific skill sharpening, the defensive player (or the one escaping/passing) of the drill should wear gi while the offensive player wears no-gi so that the defensive player is at a disadvantage and must execute good technique.