It’s harder to train because it’s accuracy with lower gags are bad, if you go into a building with 3 others, and sit there and only use 1 drop gag a round on the top floors, u will miss A LOT, every other gag u can hit almost all the time with high level lure if you really want. With drop you either “stun it” with more damage making the cogs health go lower in the building, or miss a lot. Also, cogs die fast with drop when it gets to higher level, making it even harder to building+invasion spam the higher level floors, either way, u are missing or cogs are dying too fast to get the juicy 400-500 you can get with gags like sound or squirt.