I've also got some of this stuff on order and here's what I know so far.
Downlite is licensed by Albany Int'l to produce a loose fill made from Primaloft fibers called "PrimaLoft - Luxury Down Alternative".
Here's the press release. http://www.primaloft.com/pl-home/pre...ore%C2%AE.html
"PrimaLoft - Luxury Down Alternative" - It is a loose fill roughly equivalent to 550 fill power down with many of the same handling properties of down. Possibly the greatest advantage would be the ability to use it right alongside of IX without the worry of reducing insulating power due to wet insulation.
shopdownlite.com sells this fill in 5lb. batches for $35.00 + shipping.
My order with UPS Ground and sales tax came to $51.59 for 80 ounces or $0.644875 per ounce.
Cost comparison for approx 2.5" loft in underquilt
12oz of 800+ FP down at $6.50/oz = $78.00
6yds of 4oz. Primaloft at $10.95/yd = $65.70 (could save some by stitching pieces together)
18oz of Primaloft loose fill @ .644875/oz = $11.61
I'm currently thinking about an underquilt tutorial using this fill combined with IX for Scouts, Car campers, and folks who just can't afford the good stuff. Would there be interest in the HF community for heavier budget underquilts and top quilts?