My weight did drop more on the 1500 deficit but i looked like ass. Flat, tired, etc. On the 750 deficit I look / feel better and perform better in the gym, which lets me know I'm holding on to more lean tissue. The big caveat however is that this was done without tren, which can be a game changer. I'll never forget a session i had in my 20's when I was running a keto diet eating mostly white fish with nut butter sauces as my fat source. I was running tren 100 mg eod and weighed about 245 lbs. I was able to pull a set of 12 clean BB rows at 365 on 700 calories. Tren changes all of these metrics, but it's a personal preference on if / how long to run it.
Just yesterday for example, my deficit was about 1400 calories - 12k steps, two 30-min sessions of cardio, 2 hour training session - woke up feeling like shit, flat, and 2 lbs HEAVIER, likely from inflammation and holding water. That said, I haven't had a rest day from the gym in a week, overdue for that. And it's just one day among others where the deficits were 500 - 1000.