I very much doubt that, teepot. If you can open up a spreadsheet with Excel, I bet you could use a simulator.
I'm a big fan, because I write simulations (of human physiology) for a living. But even so, I'd encourage you to try either rocsim (free for a month, I think) or open rocket (available free). There's a couple of huge benefits. First is the stability calc. Second is the simulation which tells you if your motor delay is about right or if you are going to zipper your rocket because deployment is too early or late. Plus, it gives you a picture of the rocket, which is cool.
View attachment 642832
I suspect you could be simulatin' in about 20 minutes, if you relax and budget some time. Simple steps
1. Download one of the programs (rocsim or openrocket) for your computer (that is, Windows or Linux)
2. Install it, using the instructions. For rocsim you might have to do some registration foo
3. Download a file of a rocket you are interested in (it will be either an.ork or .rkt file - you may have to click a button to tell the program which)
4. Specify a motor. In OR, go to "motors and configuration". Click New Configuration.
5. Here's the really cool part. In the motor dialog box start typing a motor spec. "G80" for example. In the window above, all the commercial G80 versions appear - all the data for those motors are in the program!
6. Select motor and click "add configuration". You've just simulated a flight! Also, note that the Cg and Cp are shown on your diagram.
7. Go to "Flight Simulations" and right click on the listed simulation. Select "Plot and Export". When the dialog box comes up, right click on the listed simulation and when the dialog box opens, click plot. You get your simulated flight trajectory. Predicted altitude tells you if you are exceeding the field's limitations (a 4000 foot flight on a 500' xy 500' field? Think again!. Also, super useful is the prediction of velocity at deploy, so you can adjust your delay accordingly, and avoid zippers.
Seriously, you don't have to do simulations, but if you're building and successfully launching rockets, saying that simulation is "beyond me" is almost certainly not true. I encourage you to try it!
Here's a sim of the OP's DX3, with a 2 ounce weight on the nose bulkhead, using an I200W (apogee of 4100 feet):
View attachment 642830