I am running 2 servos with the PWM but they tremble a lot in steady state, and some commands make them go crazy when I use the PWM with the ServoTimer1 from the Playground.
I think is because the pulses do not exactly match, but I cannot find the datasheet for the servos.
In the servo sticker it prints Mpi MX-400 MAXX products, I googled it and got no meaningfull answer.
Any help is welcome
Did you try asking/contacting the manufacturer?
The MX-400 servo is distributed by Maxx Products, Inc. and resold through Acroname, Inc. (4894 Sterling Drive, Boulder CO, 80301-2350, phone: 720-564-0373) via their website (http://www.acroname.com)
the website has no info about the MX-400, but try to e-mail them too.