Oh, I misunderstood your term "deficit". That's counter-intuitive. Additional weight would be the opposite of a deficit, no?

I don't do any strength training with weights. Partially it's my bias due to my gymnastics background (our gymnastics-specific strength workouts with just our own body weight are already nearly impossible). Also I think the additional strain of weights just increases odds of injury.

For us, when a strength exercise gets too easy, we just add the next gymnastics modification to it to make it impossible again!

Push ups too easy? Do handstand pushups or work planche-push ups. Holding an L-sit too easy? Work a V-sit, then a Manna: