if you need a cheap solution a sollar d772 will work. i still run one thats 4 years old
17 bucks on amazon and something like 300oz torque imo it cant be beat
The early production D772's were fairly decent @ 7.4v
and acceptable for turning 1.9's
(not so great for 2.2's IMO)
But Solar's recent production has cut cost with a redesign in production assembly.
And my recent experience has found current production flaws that fail easily.
(primarily the center gear fails engagement)
So my recent multiple D772 purchases were a fail, day one, upon installation :x
Warrantied... but the replacements were equally a failure.
No more D772 purchases or recommendations of utilizing them by me.
Savox 1230. Really impressed with mine
X2 on that Savox SA1230SG
I'm purdy pleased with the two I've purchased.
Few servos can match the claimed 500 oz/in @ 6v
Especially considering the lower buy in cost of the Savox 1230.
If money spent were of no concern...
I'd think to go with a Hitec 7950
But after running my 1230 in my 1/6 scale 2.2 rig
I really don't see the reason to spend more.
The Savox 1230 turns my PL TSL 5.8" XL's with authority.
Even put a S 1230 in my 1.9 rig... and it's overkill power wise.
But I personally think that's swell.
depending on budget...
either the Savox SA1230SG or the Hitec HS-7950TH
are respectable choices.
Utilizing an external adjustable BEC, for either, is a must do IMO
Although I must add that my HH's BR/XL's internal BEC
handles the Savox 1230 6v requirement without issue.
Even my FlySky RX holds up easily to the 6v input.
But IMO... by-passing the RX *
and powering the servo directly by ext. BEC/Batt.
is the better/more efficient way.
* HH's "Y" adapter is swell for doing that.
^ that way the ESC's internal BEC can supply the RX
without excessive voltage run thru' it.