thanks Trish. sorry i got lazy in my posting
i have been calling invasions at set times every Wednesday for a few weeks now. if anyone has a specific cog they need a few of, and i have that invasion, i am more than willing to use it. generally, in blue districts, when you call an invasion there, it can last up to 20minutes.
if you are in a 5 story building and are with friends who are willing to just kill the building quickly, you can get as many as 22-24/25 cogs of that particular invasion and then speed into another building.
or if you need the cogs and want to work gags, you can quickly kill the 1st 4 floors, as long as you are on the 5th floor when the invasion dies, you can milk the building for gag points -if your friends are agreeable, although any bucks,merits etc are not doubled.
since no one has requested a particular type cog, i'm thinking maybe wigs.
then again, if no one needs or wants the invasions i can discontinue them and just call them when friends ask? for all i know some of you may be throwing things at the computer when the invasion gets called and you need something else and i messed it up for you.