X2 on that response.
My Father-In-Law runs a 645 on his Tekin FX-R without a single amping issue. However my brother can't seem to go 2 feet without getting bound up and amping the rig :lol:
8)
Too funny, 1 of my fxr's was the same way, went out to drive, and almost insta amp out. Other than that esc, i have noticed they run fairly well with no bec if: you are running a 2 cell lipo and no 3rd channel (winch/dig/etc), in this scenario i have no amping out, and no overly high temps. On my 3 cell 2250mah, 55T and no 3rd channel, with no bec it does okay, but gets a tad hot, especially with my 5955tg. I had it shut down from over heating only a couple times, and decided to let her sit till i got another bec (once you go bec, you wont go back :mrgreen

. If you are running a 3rd channel for who knows what, run a bec from the get go. Now i only run 3 cell lipos and the majority of my rigs have 3 channels, sooo my fxr's have bec's and i swap them in and out of rigs. If you have $20 for the bec, get it, and if you have another $20 for the castle link, get it as well, if you don't have the extra $ for the castle link, find a buddy who has one till you can pick one up.
On a side note.... Lately my motors have been feeling "tired" in my berg, so i plugged her into the hot link to change stuff and noticed a software update (must have been a while since i checked it :mrgreen

. So I updated the software last night to the 30, and from the little driving i did in the dark it is amazing. I can't believe how a software update could change the esc so much, if you have an fxr, get the hotlink, you won't regret it.