The "locked wrist" is only good for learning to fly level and then mild climbs and dives because the model will want to go where your arm is pointed. Don't EVER try it for inverted flight though

Once you're confident with that then you can start moving your wrist a little and you'll soon find out how much more quickly the model responds but even then, keep your arm pointing towards the model so it's only wrist movement giving the control. I wouldn't advise even doing a loop with a locked wrist because you need to follow the model with your arm while using the wrist for control.

There's a couple of ways to approach doing your first few outside loops. It's all about getting confidence in the model to do them but in general an outside loop will be done in about the same size as an inside loop unless the controls are really out of whack. You can start one by flying quite high then easing in down control with your wrist and following the model with your arm so you keep the same amount of elevator movement. The only thing to remember is DON'T CHANGE YOUR MIND...keep that down elevator until it's come back around to the top then level out. Another way to do the first outside loop is to come over in a wingover and after it's gone past the top start the loop. Once again, DON'T CHANGE YOUR MIND!

Once you've done a couple of outside loops you'll be quite confident the model will do them so then progress to the lazy eight. This is a great manoeuvre for a few reasons. One is that you don't get twists in your lines so you can do them over and over. Another is that you can start experimenting making the part loop each side larger and larger instead of banging in full up or down. After doing a few of them it starts to become automatic that after the "up" control you know you give "down" and this is when you can start extending the inverted part of the eight by flattening it out a little with a small amount of that automatic "down" you know you have to give. If you get worried then just complete that automatic "down" control (and it doesn't hurt to keep saying in your head "down down down").

When you progress to lazy eights don't think about how you hold the handle when you're giving that down control. Just feel comfortable and the handle position will take care of itself. More than likely you'll find you roll your hand over palm up when inverted which I find to be the safest anyway. Others will disagree but to me it's an automatic cue that the controls are reversed and it's not necessary to consciously think about what you're doing.