tips on skiming over angle beads

[rnd]

can anybody give me some help or tips when skiming over angle beads, everytime i try this my walls curve in at both corners . so what i do is i try adding more mix and to try to compleatly cover the beads. but as i try this , and the more i mess , i start to get bubbles and this is due to over trowling ive been told.

when i have done a wall with an attached peir, or a post in my house its fine , i just keep struggling when the walls are longer , it always seams to curl in at both ends , it tend's to look worse at the bottom of the wall than anywhere else.

please all help would be a great help.

regards

rnd