Grey - toss up, I usually sell for extra currency as they only earn base secondaries with no upgrades until sliced. The slicing material is better used on a green mod. Diamonds, circles and squares will fall in buckets. Sell away, however; always keep +speed primary arrows, and LOCK them as soon as you earn one. I also keep crosses with potency, offense, tenacity, as well as Crit Chance/Crit Damage triangles.
If you're going to try slicing grey:
- upgrade to level 12
- if no speed shows up, sell it
- if you get any speed secondary, try slicing. If it doesn't hit on speed don't slice it again. Waste of resources.
- if it's a +speed primary arrow, keep it and lock it
Green - upgrade to level 9 to see if you roll +speed on any of the four secondaries. If you did, go to level 12. If it hits on speed, fantastic & LOCK IT, if it hits on a character specific stat you need (offense for attacker, potency, +protection etc) almost as good. Level that mod to 15 and use it. Slice only mods that upgrade twice (2) on speed.
Summary:
- level to 9 right away
- if no speed secondary, sell
- if speed secondary, level to 12
- if it hits speed or another ideal stat, level to 15 and LOCK IT.
Blue - upgrade to level 6 to see if you roll +speed on remaining two secondaries if it wasn't there to start. If no speed, sell the mod unless it has great stats you might need for a "B" or "C" team. If it shows speed go to 9 & hope for an increase to speed. If not, that's ok, go to 12. If it didn't hit there you still have a +3-6 speed mod that is ok for a low-use toon. Don't slice. If you hit (2) or (3) on speed then try slicing it to purple. LOCK IT
Summary:
- level to 6 right away
- if no speed secondary, sell it
- if it has speed, go to 12
- ideally it hits (3) on speed, lock it
- if it hits (2) on speed, lock it
- if it stays at (1) it's up to you depending on other secondaries
Purple - I tend to keep most purples with any speed unless they have absolutely garbage secondaries. Might have one of the first 3 secondaries as speed, if not; increase to 3. If you get +speed keep upgrading. Ideally you'll strike a (4) upgrade on speed, which is pretty rare. But I have plenty of purple mods that have several (2) stats and +8-10 speed. Decent mods but I won't slice. Only slice if it's (3) or (4) on speed. LOCK IT Not worth the larger investment of slicing material for less than that.
Summary:
- level to 3 to reveal last secondary
- if no speed present, sell it
- if speed is present take it to level 12
- ideally you get (3) or (4) on speed, lock it
- if you get (2) decide to lock based on secondaries
- if it stays at (1) I usually sell unless there's an amazing secondary (+100 or more offense, a mountain of protection or health etc)