Starting my cuttings using my new bag method. After they are sufficiently rooted, I transfer them to 1g pots. Whereupon too many go limp and croak. I don't think that a post mortem has ever shown anything other than the soil being too wet. So, this year and am mixing perlite and compost at about 60/40, as per usual. The compost is very slightly damp - just enough to keep the dust down. After potting, I water with a slow drizzle right at the cutting, until it runs out the bottom. I do not water the rest of the potting mix. Then it goes into the greenhouse for a week or two, until I need the spaced, and the weather is not too extreme (we were 90F last Friday, and supposed to be low 50s on Thursday - so timing can be a challenge sometimes). The bottom line is this: I am using the balance of the potting soil in the pot to act as a wick to draw off excess moisture in the root zone. So far only one plant lost in the first 200 or so. Each watering is done the same way, until the plant is well established. We'll see how it looks later in the season. So far, varieties that last went limp at almost 100% rate last season are looking good.

Great!  So what I have to look forward to is 100% death when I transfer to 1gal pots?  ;)

I'm really regretting that 2nd watering before tossing them in bins (I drained for a couple hours outside after on a hot day).  I'll probably go out of my way to leave my bins outside for the next few days to evaporate if leaving them open the next few days doesn't help.

I am not using the baggie method, but I did grow in cups with 70/30- perlite/ seed starter mix. 

When I transferred, I used a Pro-Mix substitute/ Perlite Mix-1 to 1 parts ( Ingredients were the same as seed starter mix anyway).  I poured tap water into it and mixed until heavy.  No water dripped out when it squeezed into a ball. Fluffed it up a little , by running through my hands.  I filled a 1 gal in and packed down a bit but not that it was solid.

I then set up a humidifier and took the humidity down to 55% from 90-100%.
I fluctuated the humidity over a 3 to 7 day period. I  would put into a north facing window to get some light after being in a translucent bin getting filtered light while received the water vapor. The first few days I would mist  the leaves with water.

I then transferred them to a south facing window to get some direct light.
Up to this point, I have only lost 1 out 7. The one to bite the dust had a poor root mass, stringy, little to no laterals. Leaves were only being supported by high humidity in bins. Died the second I stopped misting and humidifier turned off.

Each one is a different variety, but the root mass was extensive enough to support the cutting. Some lower leaves fell after a few days, but growth is evident.

Doing it like this prevented me for overwatering for awhile. Soil is still wet after a week and a half.

Jon, I like using your uline baggies for starting cutting.  I did a test on Jan 1st.  After making a large amount of 50/50 Pro-mix BX and Perlite.  I watered the mix using rain water and tested it using a moisture meter.  When the moisture meter registered midway, I added no more water.  After I bagged the cuttings up, I did not water again for 4 weeks.  When I watered them again, I uses a clear ketchup / mustard bottle and rain water.   I got some that needs to be repotted today.  I'll take some photos and post here.  Some have roots starting to turn brown but the roots are large and strong.  What I am also noticing is the thicker and fresher the cutting the more success it will survive.  Also those close to the thickness of my thumb seem to root faster. 

However, I will also say that I like using Dan's method of using those peat pots.  I started some UCD cuttings last night using those pots and was amazed how fast I could pot up the cuttings.  I potted about 60 in less than an hour.  I found a place on line that carried the long peat pots.  They hold a lot more medium than those little ones at HD and Lowes and fix perfectly inside a 16oz cup.  I thought I would needed to wet the peat pots but within minutes the pots did get wet from the medium.  Thanks Dan!  I think I will be using those peat pots a lot more often now.

Man, I wish I would've known, I'd have sent you a pile of them.  I used peat pots for all of my veggie seedlings one year and after being unhappy with the results in my zone, I gave away about $60 worth of them - all shapes and sizes. 

@ Dennis... would you post the source/link for the long peat pots, please?  Thanks!