Here's a link to my gear photo set on Flickr. The first few photos are close-ups of the Costumebase bag attachment points. Later in the set you'll find side-by-side comparison photos of the Costumebase bag and a Magnoli bag:
https://www.flickr.com/photos/puuikibea ... 202404067/" onclick="window.open(this.href);return false;
The Costumebase bag lasted for quite a while with "real world" use; in fact, the fabric body of the bag tore at the strap connecting point halfway through my rim to rim hike across the Grand Canyon when I overloaded the bag with three full Gatorade bottles.
I salvaged the "pleather" strap by prying open the brass connecting rings with pliers and a screwdriver. I used the same fake leather strap on my first Magnoli bag... and the cheap strap has outlasted the Magnoli bag! Yup, the strap connecting point tore out of the Magnoli bag just like it did with the Costumebase bag. I pried open the black metal rings on the Magnoli bag with pliers to install the Costumebase strap.
I actually prefer the C-Base strap for day to day use. It's more supple than the Magnoli leather strap I have on my second Magnoli bag. In fact, I was using the C-Base strap on my Magnoli during the "Pillar of Darkness 1913" expedition with Snakewhip Sable last summer. See photos in this topic:
http://indygear.com/cow/viewtopic.php?f ... f+darkness" onclick="window.open(this.href);return false;
At the risk of incurring the wrath of the leather strap purists, I fully endorse the Costumebase "pleather" bag strap as an inexpensive, functional alternative to a leather strap.
I think my response and the photos on my Flickr page should answer your questions. You were correct in your assumption that somebody here would know the answer to your question. I apologize for the late response, I haven't been around in a few months.