Nice review! I agree, this site's lack of interest in the Plenty had me scared as well, but I could not be happier with my first vape choice. I actually do something similar to you with how I pack it and use the space saver disc, however, I use it to get medicated around 3 to 5 times each pack. I will pack it fresh WITH the disc in there, take 3-5 hits at 6 setting, pull off the whole attachment to let the herb cool down while taking one or two more hits while cooling. I repeat this a few times, by the 3rd of 4th 'session' I am setting the dial at 7 to get everything I can, than finally dump and start fresh.
That being said, it does take a bit to heat up, and with kids I will turn it on, walk away and find myself unable to return (changing a diaper, getting a snack for a kid, kissing a bump, playing with kid) until it already cooled down again wasting a bit of herb. I am learning ways around this, but it's something to consider.