thanks!
Yes i tried the gravity method

That is where i got push back from my male cat. the clever little one saw me put his sister in the bag, and spread his paws as wide as possible to resist the gravity..
As far as the bags in the common area of the house, they had been out for 6 months i tried feeding them treats in there, so they associate it with treats. i tried the catnip too. I just have little toughies I think

That reminds me I have to look at harnesses.