There is a permanent tail reward turnover in my design. And it is still unprofitable.
I'm honestly not ready to throw in the towel on inflation due to being a completely arbitrary number that opens an enormous slippery slope for alteration by succesors. Inflation also just being a form of social engineering that people will always attempt to bypass by utilizing other systems. Also due to the fact stated below:
Transaction fee as block reward with zero inflation being the far lesser of evils to the point where it can only be considered a work of art.
There is no inflation with a tail reward.
Any smallish level of inflation will result in a constant
spendable money supply (click the quoted link for the math):