@zaffy2005 Ilgrants always fires 10 projectiles when fully charged, no matter what class or weapon you are using, so it is likely just your perception.
The slash is not super long range, but it is wide enough that it hit the Rockbear while I was standing where the training console is, though the behavior does change depending on if you are using a forward-casting or AoE Tech.
Also, don't forget that all of Phantom's Weapon Actions recover PP when they hit, even when uncharged or when no Marks have built up yet, and the Rod's has good range. Also, speaking of Marks, Abundant Rabarta is great for building them, especially when mobbing in combination with shifted Massenvernichtungs (the PA that creates the ring around you).
Because of Stealth Tech Charge, you can afford to be a bit more daring with getting in closer range when casting on a Phantom since it gives such long invulnerability; you get 1 full second (compared to the 0.6 second of the Tech Parry ring, which doesn't block from behind), which is longer than the charge time of almost every Tech when combined with Tech Short Charge.