[pct-l] try before buy - UL backpacks

[Albach]

Folks,

I'm thinking of trading in my 20 year old backpack for something lighter 
but frankly would rather not make the $200+ investment just to find out 
on day 2 that it is killing me.

I can likely get a 2 or 3 day hike in prior to my starting my next 
section (C). Does anybody know a vendor that would do a try before buy? 
Would happily lay out a credit card number they can charge me if it 
doesn't get returned in 2 weeks.

Thanks,

-Robert