Gomu Gomu no Mi/Gear 3 Techniques

Well we know that in Gear 2 Luffy can completely change his blood pressure to make it pump far faster, and we’ve also seen him completely digest large quantities of food in comically small amounts of time… So could he improve other functions like synaptic transmission and passive bodily growth, or even maintain oxygen for large amounts of time, enough so to sustain himself underwater? What possibilities has Luffy potentially overlooked?

Since the first time Luffy used gears ,Oda somehow finds ways to nerf Luffy. Lets start with :

• Gear 2: Luffy loses lifespan because he puts a toll on his heart and body by rapidly sirculating his blood (at least something like that) . I believe that oda shouldn't have put this kind of restriction in Luffy. He should just get tired with extended fight in this form and just that.

• Gear 3: This is also puts a toll in his his body but not to the extent of gear 2.

• Gear 4: He use a combination of armament haki and gear 3 or something close to it , where not only he becomes physically stronger but also his body gets a boost in elasticity. Also his haki gets a boost in power. In general Gear 4 have three sub-forms. But comes with the cost him being physically exhausted and not being able to use haki fir a whole 10 minutes,which in a fight is UNACCEPTABLE. Oda should just have made Luffy just at least , unable to use this form for ten minutes and that is all.

In the end of the day which Yonko level from what we have seen is so weak and gets exhausted so easy. Maybe in his gear 4 and his 3 advanced haki I am sure that be can fight toe to toe with any emperor but when he gets exhausted then what ...cuase although Luffy somehow won the fight against kaido with much luck and an exhausted and hurt Kaido and hurt but in the end he needed also his awakening. Correct me if I'm somewhere .

I wanna mention that right now I am when Luffy,Law and Kid just arrived in Roof piece and Luffy got exhausted after fought kaido with his gear 4 and showcased his ryou .

There is also Gear 5 (awakening) but I don't know much about it. I only know is that everytime he uses it ,it is shown that he ages but I don't know the extent of the drawback...

Well in general ,Oda has this habit that everytime that luffy power ups gets and drawbacks which I haven't seen this with any other characters in the series. What are your thoughts?

Now I know he never kills but remember when luffy got angry at the beast pirates for selling food then he used elephant gun to crush that one guys skull and spine? There is no way that guy literally survived an attack like that, I know one piece characters have durability and stuff but that one was just way too brutal for him to be alive.

its called new years it done by using hanabi (or fireworks) while the air gained by entering gear 3rd moves around randomly, then after 3 or 4 seconds he stomps down (the reason for this is because in america on new years they drop a ball, i never understood why they did that)