I'll let the other folks talk about durability, since I work for PRP. I won't say the Swift RTR s unbreakable, though! We've learned a lot of lessons, that's for sure.
The engine, we've found, is darn near perfect for the beginner. If one doesn't play with the adjustment screws before starting it for the first time, the .21 usually starts on the second or third yank....with a fully charged igniter. After that, simply make small adjustments, one at a time, when you begin to lean it out. The engine is made by a Taiwanese company called SH, they do OEM engines for a lot of other companies that sell in the U.S.
www.atlashobbies.com is one shop that sells our parts online. Check out our website,
www.happytimehobby.com, for other hobby shops that might be in your area.
On the diff question, the shim(s) prevents the outdrive from being pushed out when the gears make contact. Try building a diff without the shims, then see if you can move the outdrives in and out...it should have a bit of slop in it, maybe .5-1.5mm. Then put shims in behind the pin, and in front of the o-ring. You just want to make sure the outdrives are still free, but without that slop. Amazing what a difference a tenth of a millimeter can make.
If your Swift came with a clear body in addition to a painted black and silver one, it's the first run. Otherwise, it's a second production run car. There are still a few reports of loose screws in the second run, so I would definitely recommend checking your CVJ's, and remove one of the setscrews (they still have two! argh). I guess we didn't yell and spit into the phone enough.
On the other hand, I went to China two weeks ago to work on some other projects and got to check over all that they're doing for the Swift. There's about 12 new items they are working on, which will help performance and durability...from new diff cases, aluminum suspension parts, to new bigbore 3.5mm shocks!
And our monster truck is coming along just fine...got to drive it. Waaaay to fast! But I guess that's what people like! We are having a name-the-truck contest...whoever wins, gets a free monster truck! Send your submissions or other questions to
[email protected] (me).
We're also working on a 1/10 nitro touring car. Designed by Americans (well, two of us at least!) from the ground up. Watch out, it will be a little bit different.