For those of you that might be interested in the "fuse mod" I thought I'd post some pics of my recent installation. In the event that your main or tail rotors stop (as in a crash) with the throttle still advanced, your motors can pull enough amps to damage the 4in1 and the fuses will blow to prevent that from happening. I was going to solder the fuses in as is typically suggested. However, when I was in the auto parts store picking up the mini bus fuses, I also happened to find some small audio connectors that looked like they were just the right size to slip onto the blades of the fuses. The connectors were a little tight but slipping the thin blade of a small screwdriver into them loosened them just right.

The first photo is of the complete installation. The 3 amp tail motor fuse is the vertical one in front of the main motor. The 7.5 amp main motor fuse is the horizobntal one in front of the 4in1. I decided to install both fuses on the 4in1 side of the connectors to make it easier when I have to change the motors at some point. The second photo is a closer look at the tail fuse and the third photo is the package of audio connectors.

Although soldering wouldn't be difficult, this has the advantage of making the fuses "field replaceable". Just carry some spares in your pocket and plug in a new one if it blows. Total weight of both fuses and the 4 connectors is only 4 gm.

Bill

Update 1/21/2008 - After finding that the 7.5 amp fuses blow rather frequently on the main motor I've switched to 10 amp fuses for the main. I have had one blow during a crash but the 4-in-1 still works fine so I think the 10 amp fuses provide adequate protection. Use at you own discretion.