There will be no inflationary effect on mainnet, when there's 1 set of superblocks per month totally 8000 DASH or less. The effect on the coin generation will actually be deflationary. These superblocks are allowed to happen 10 times a day right now, however on mainnet they will be once per month.
There's an average of 553 blocks per day on mainnet (60*24/2.6), which means we have 16615 blocks per month. To not be inflationary, we'll reduce the block reward by 10% each block . Total monthly generation can be calculated as 553*30*5*.93 = 77143 (minimum), so 10% of that is 7714 (minimum). That means every 16615 blocks on mainnet, we'll be allowed to create a few blocks that total that much in generation. We'll eliminate 10% of the total reward, but we'll only be allowed to create the minimum reward. For example, if we average 8DASH per block and reduce the block reward by 10k DASH, we'll still only recreate up to 8k DASH. If we only have budgets approved for 3k, that will result in the other 7k DASH never being created at all, a deflationary effect.
On testnet the superblock frequency was changed from 16615 to 50, or 332 times the frequency. This is highly inflationary and NOT going to happen on mainnet. We just needed a lot of opportunity to test this on testnet before being sure it was secure and working properly.
Sorry for the confusion, i'm not sure where this message got lost