Higher voltage means higher amps drawn.Ohm's Law. Given a 4.8V and a 6V battery of the same MAH, the six vold will provide more torque, and faster speed, but shorter flight time. If you are flying low MAH batteries, this can be a problem, but with 2400MAH NiMh batteries, you will tire before the battery does.

It is common knowledge that digitals require more MAH. They may, but it isn't noticable. Iwas helping a new guy Saturdaywith a problem he was having and I was astounded athow slow his surface movement was.Icould go full up, full down and back to full up on thestick and the servo movement was about a half stick behind.Trying tofind center was also a bit of a chalenge. I would trima surfact to center and then wiggle the sticks,it wouldn't quite center again. trim half that out and wiggle the sticks and the average center would be OK.My vote is digitals on 6.V, followed with analog on 6V. I usually fly digitals on 4.8V though because I have more 4.8 V batteries.

Bottom line, go fly. You will go nuts trying for the "best", or "proper" set. Put some good batteries and good servos and go fly and enjoy it.

Don

It was foggy and cooler today, about 65, but the last week has been as good as you can get. 70 to 80 and near calm winds down the runway.