How are u playing Ancient Gear Gadjiltron Dragon without Geartown?
Maybe you could try siding in the "hunder" cards as they just spam level 4s.
2 x Breaker the Magical Warrior - geartown or gtfo
3 x D.D. Assailant - too situtational
3 x Fossil Dyna Pachycephalo - slows ur deck down
1 x of each gadget - 3 is cloggy - 2 is better
2 x Snipe hunter - random discard for fail
1 x fissure - dark hole better
1 x smashing ground - dark hole better
1 x ultimate offering - double summon better
1 x solemn warning - 2000 = opp is winnning
2x machina gearframe
1x redox dragon ruler
2x reactan dragon ruler
2x rank 7 xyz
1x mirror force
try these changes out let me know how it goes.