Yes that is great but it could also be helpful to see what your return would look like after an extended draw down of 20-70% during any given year of the graph

The 80% stress test only works because the collateral is real and auditable. Traditional lending models stress-test against assets that are themselves levered — when rates move, the collateral moves with the liability. Self-custodied BTC isolates the exposure. The stress test reveals actual risk instead of laundering correlated exposure into a headline LTV ratio.