2s/3s servo?

[clm]

I know the HV500 is rated up to 2 cell, and the SHV500 is rated 3-4 cell.. Is there any HV servo rated for 2 AND 3 cell use? Being as I plan to eventually pick up a 3 Cell but as prior to picking up my TRX-4 recently the newest vehicle I had was a Revo with the middle converted into a summit which only takes a pair of 2 cell... so I only have that voltage of battery currently.

Most will say just go buy new batteries, but the TRX-4, while it runs adequately in runtime and speed on the batteries I currently have, the servo really needs swapped. So... Will either of the Holmes or the Promodeler servo do 2 and 3 cell? Or is there another one that will BECless do 2 and 3 cell?

Or would it be better to buy a 2s capable servo and then later buy the bec when I get 3s batteries to keep the voltage at that level?

Thanks for any input, my brain is going into shutdown mode reading through all these servo specs heh.

[Meatwad]

Get a bec