That's too funny. I was just posting at the same time as you...
I wanted to put the Fantom into something else I had previously flown first, to get a better comparison, but the DJ was ready, did not have an engine in it, and it's more accessable than the Sabre or the Corsair, for changing the pipe length and such. So, in it went.
For the RPM, you can try the stock Toki, I'll probably go for whatever the hottest thing is I can find. I also want to do the mini springairs. I heard robart has some new tiny ones, too...