would it be
No
Take a deep breath and get your brain in gear.
If you want to write 1000 to m1 you use
m1.writeMicroseconds(1000);
This uses the Servo library function to write a value to the ESC. The value in this case is 1000.
You perform a calculation like this
myPulsetime = (mypulseTime + pulseIncrement);
after which myPulsetime has a value.
As an aside, how would you print that value ?
Rather than printing it you want to write the value of myPulsetime to m1. You know how to write 1000, so substitute myPulsetime for 1000 in the command and you will have written the value of myPulsetime to m1.
I do not want to simply give you the answer because it is important to think for yourself