I'd run taht course, but I'd run 4-5months. Nothing wrong at all with that plan.
Personaly, I'd jab 500mg day 1, and 500 again day 3 or 4 to kick it off.
Then the 750--500EW.
Is the SUS in 1cc AMPS? If not get HG TE. Pay up, You get what you pay for.
Didnt gain off Deca? Fake or underdosed IMO. Most EVERYONE GAINS 1ST TIME.
If you cant get quality, wait.
3 weeks after last shot, the SUS goes By By. You hit the nolva then, or earlier if any Gyno signs.
I personaly tapper down 3-2-1cc SUS with the shots gettin wider appart, up to 17 day apart for last one. Smoother landing.
Long cycle on long acting.
Coming off 12 week of that can be hard for a beginer.