Thanks for the insight into them. I figured the reason the were sending out only small samples was that big ones were gonna be heavy. Samething with the Avery stuff I got samples of. At the ISS the small ones were fantastic feeling. They sent me some bigger ones and just too heavy,.In a word... NO. I did a big (can't remember the size but like 8x8) design on some shirts which was basically a campaign sign. They looked awesome but it was like someone took the plastic sign and stuck it to the shirt. Seriously, HEAVY!
What you can do though is figure where you can cad cut this and add in cut lines for them to cad cut it while it prints (I'm thinking they do this anyway). That way you can use your shirt color as one of the colors and drastically reduce the amount of material on the shirt.
They do look awesome though. 50 washes is quite a lot really. I've got lots of screen printed shirts in my drawers that didn't hold up that long till they started cracking all over. I was also quite pleased with the price considering it was a 7+ color logo I couldn't have had it done any other way and still it was a little over $5 each. I kinda view it as a last resort effort to get the design to a shirt. And their minimum is great too.