100-115 Nogg Road:
Head: +9 RWH
Armor: Nab Cloth FS8+ Porcellio Card
Weapon: +9 Spec Jur 4 HF > +9 Krishna 2 HF (Survivability > ATK due to big mobs at nogg and low hp that new gx's have) Worth using edp, always.
Robe: Nidhogur Garb / +9 HBP (I prefer Nid for more SP leech)
Boots: Temporal Boots Str BP/LD Fs7
Acc: 2 x bakos / RWC FS / Rogue Treasures
115-126 Mid TI solo
Gear will depend on the mobs. But stick to RWH + Nid + Hunter Fly combo. At lvl 120+, krishna/Blood Tears/Thanatos Katar > +9 Jur
127-150 High Ti solo + Scaraba dungeon 2
EDP + Fire endow for scarabas
150-175
Bio 4 parties (best Turn In exp but loooongest wait)
Bifrost Tower 2 (Mora bounty board) : Fire Armor or Angeling + water endow
Nightmare CT (no bounties): Deviling + Fire endow
Luina Guild Dungeon 2: Deviling + Earth armor + Fire endow
Thats how I leveled 2 gx's to 175.
Hope this helps and good luck !