This strategy is flawed. Your strategy may be effective now but how about in the future, another target "normal" price? What if your "normal" price was just a history now? Then you won't buy more?
The basis for your strategy should be based from the percentage of drop in Bitcoin's price. Percentile pattern are always close to each other, IMO. Very much reliable that instantiating "normal" price.
Agreed. This would all me irrelevant in a matter of months (may be even weeks). Was trying to get the current opinion, not for future reference. If there are a lot of votes now, it would be fun to look back after a few years.