Selwyns Print Sleeves Vs. DIY Mylar Sleeves w/ Backing Board

[nebu1ou5]

I was wondering if anyone had any experiences with Selwyns print sleeves for long-term storage?
(http://www.displays4sale.com/StoreModul ... er-Sleeves)
(http://www.selwyns.com/sleeves.php)

Would anyone recommend them?

I am at the beginning stages of coming up with an archival system for storing my prints. I was about ready to follow what was discussed in the Print Storage Wiki (http://expressobeans.com/wiki/index.php ... Your_Print) but out of nowhere a local frame shop unexpectedly offered to sell me used Selwyns print sleeves for a very cheap price (cheaper than the cost of Mylar sleeves by themselves). The frame shop said that the only things that were stored in the used Selwyns sleeves were giclées and offset prints (no toxic oil paintings, etc).

Does anyone have any opinions or know of any reasons to avoid these Selwyns sleeves? Thanks!