New mod slice dropping rates

Slicing occurs after the mod is raised to level 15 from everything they have said so far. Otherwise, you could force speed to increase 4 times on a green mod that showed speed from the start effectively making low-rarity mods worth more than high-rarity mods.

See this post for reference.

The biggest benefit of high-rarity mods going forward is the lower slicing material (and maybe credits?) investment to get the mod maxed out. You'll essentially be able to increase the secondaries 1-4 times (1 - green, 2 - blue, 3 - purple, 4 - gold) at the cost of only credits instead of also having to have the slicing materials.

The way that secondary stats reveal/level is done in reverse now. So, on a blue mod the additional secondaries reveal at levels 3 and 6, then 2 secondaries increase at levels 9 and 12. This gives all 4 secondary stats an equal chance to receive the increase. What I would personally recommend on your blue/green mods is to only increase them to the minimum level necessary to reveal all 4 stats, then make your decision on whether or not to finish pushing them to 15.