Thanks for all your input, I've decided...

[Mr Crunchytoon]

I'll go with Drop. I don't mind spending some time soloing low level cogs to build up a gag, and I'd forgotten that you only get 2 on the TNT versus 3 on the pianos. I think I'll be happier letting others trap on my already high Lure.

[Mr Crunchytoon]

I accidentally made this a new thread, I only meant to reply in the Trap or Drop? thread I created earlier.

[Sally Kat]

Good decision.
Just remember when you start practicing drop, don't be dropping any flower pots on level 7 cogs. Start with level ones and twos for the flower pot, 2 and 3's for the flour sack, 3 and 4's for the anvils....etc...
I think once you get past that point it gets a bit easier...but no matter what drop still is low accuracy.

And squirt increases the chances of drop hitting, if I see someone choose drop I will always pick squirt to help it out.