Sounds interesting. Superior has an excellent invisible thread. They have 2 "reduced sheen" invisibles -- one is a clear thread and the other is a smoky. The price is great, too....2200 yards for $7.99 plus shipping.
I'm using invisible clear on a quilt right now. The one hint Superior has is to loosen your top tension. Normally I quilt with regular thread and have the tension at 7-9 (on their tension gauge).....but with the invisible threads I drop it down to 2!!!! SO don't be afraid to REALLY drop the tension on the top to REALLY loose.