Copy from Patch Forum, since it don't get any responses there I throw it here too.
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Tried out some of the throwing grenades, that turned out to be a sick joke, here's my observations:
May Fly Throwing Grenade
These has to be built, you find the tools in the trade section. You can only one assembled at the time since it's unique!!! To activevate it you have to have skill in ElecEngineering, and Grenade to throw it. It dissapears after 20 second if you don't throw it. This is AoE dmg it seems...
QL44: 1.5k for the parts, 202 EE/Grenade, 199 Chem dmg
QL73: 3.5k for the parts, 336 EE/Grenade, 230 Chem dmg
QL91: 5.5k for the parts, 417 EE/Grenade: 317 Chem dmg
QL151: 15k for the parts, 681EE to active, and description said 681 Grenade to throw it but got a message that said I needed at least 900 Grenade to throw it.
HSR 23 Throwing Grenades
You can buy these at shop, they are stacking as a cluster. You only need to right click it or put it in you shortcut bar to throw it.
QL76: 345 Grenade, 48 projectile dmg
QL94: 425 Grenade, 58 projectile dmg
QL104: 470 Grenade, 64 projectile dmg
At least I thought May Fly was going to do very good dmg since it's unique and you have to make them all the time, but doesn't seem like it. I really hope this is a bug and FC is going to fix it!!! 15k for a single AoE shot is expensive, so is the skills needed...
any comment?