I have one LA 40 running so far, its in my Brodak Viking and have about 20 flights on it so far and it hasn't missed a beat. I runs great and pulls the plane well. I have a BY&O 11x6 on it. I have the front needle valve assembly on it from super tigre that I got from virginia hobby sport. I have a NIB LA 40 that I am planning on sticking on a Brodak ARF cardinal. The LA 46's run great also. I have good luck with them, all have front needle valve assembly in them except for one in my pathfinder.
Cya at Brodaks in a month!
Ryan