I would like to suggest one odd suggestion but hear me out.
My suggestion is to multiply all zencash holdings by 10 (as well as for mining, secure nodes stake and rewards, fees etc). This would make circulating supply grow from 3,570,625 to 35,706,250. Reason for this suggestion are people mentality and ease in trading/sending. As we are about to receive updated whitepaper soon I see no better time to suggest this.
This would also mean that value of 1 Zencash would decrease from $23.21 to $2.321 but everyone would have 10 coins instead of 1 in this example.
People mentality is following: They like to large amounts of smaller coins hopping they would get rich fast instead of owning few low max supply coins. This has lead to high market cap of (excuse my language) shitcoins like XVG or XRP having 10x or more total market cap value than quality coin like ZenCash.
Second is ease in trading/sending. People like to trade and send whole coins instead of decimals. Margin trading would also benefit higher total circulating supply than those of low circulating supply coins (when we are added to an exchange that allows ZenCash to be margin traded. As we can see on coinmarketcap, even Zcash that is one of the older cryptocurrencies is #27 on total market cap of the cryptocurrency markets.
One exception to this is DASH which has circulating supply of almost 8M coins and holds #13. Please check the rest of the list and their max supply and compare the benefits.
Please discuss cons and pros in this topic