I understand that you are referring to ETH - and I personally would not be employing such incrementalism system, unless that I have a belief in the fundamentals of the asset (which for me is not the case with ETH).  So yeah, sure such an incrementalism step system can work for ETH on the short term, but it works better (to sleep comfortably at night) if you believe in the long term prospects of the asset (so better for BTC than ETH), and therefore your long term vision to accumulate and to HODL the asset through the bad times (which is a part of volatility).