Well, using a bit of leverage would have worked during 2014-2015, in early 2017, in late 2018 and 2022, but in my experience, significant leverage always kills your account in the end...maybe that's why i was a bit worried about M. Saylor in late 2022, but, apparently, he did not have any covenants that would have caused him to buy back the loan at that time, despite the fact that MSTR book value was probably deeply negative back then.
If he would have been, btc would dip even more. there are multiple stories about successes, like people using credit card debt and buying gobs of btc in 2015, butbthe stories of some who did the same in an opportune time are not being told and, obviously, you could have put youself in pickle by doing this in late 2017 and 2021.

So, my general suggestion about leverage is...don't do i!