Heh you're a lucky one Reefs.

sdsavage: Thanks for posting about that. I was hoping a unit like that existed. Doing a quick search on Horizon showed this unit. It looks small and light enough to not cause any problems with weight or placement, just tape it to the top of the 4-in-1. I'll definately check something like this out when I decide to go LiPo. But now that I'm looking at it, I'm not sure how you would hook this unit up to the 4-in-1 because the battery connector of the 4-in-1 is soldered to the inside. I wouldn't want to have to cut the leads and make new plugs for this unit, will surely void the warranty.... But oh well we'll see.

Oh, and if you read that post I made earlier about the $12 stroboscope solder-yourself-kit, here's an update: I built mine in about a half hour, it's a very compact unit and the LED's are super bright. However, it turns out that 60 flashes/sec is still not fast enough to "freeze" the rotor blades very well, I'm looking into swapping the potentiometer, I already changed a capacitor thinking it would solve the problem but it didn't... Anyways, it still works well for checking if the blades are out of track. I just got my crash kit the other day (THEY'RE BAAACK!) and put on the new rotor blades (by the way the replacement blades don't have the colored tape on the edges, so take a sharpie and make your own colored markings) and tried tracking them. With the lights out except for a dim one the stroboscope worked great. I would look horizontally at the rotor head so I could see the edge of the blades and then put the stroboscope right below my head so it would flash on them, and I could easily tell how far off the blades were (it was pretty bad, needed some fixing). After a few seconds I determined which blade it probably was and made an adjustment, and it was getting more in track (also, remember to adjust the blade that's the LOWER one, keep the higher blade where it is). After a few runs I've gotten my blades as close as I can get to them being perfectly in track. At medium throttle with the stroboscope it's a smooth line when looking at them horizontally, with a few "bumps" in it but that's probably due to the shape of the blades themselves. So, if you're having trouble determining how well your blades are in track, get something like this instead of paying $200+ for a digital stroboscope that you won't need. You can check it out here. Also, I wrote a quick review on the site if you wanna read that too