I broke my leg so i have some down time. I've watched all the reality tv i can handle, so while searching the web i found the perfect answer. 4est Trekker's red oak board BA. I have glued and rough shaped my bow. During my hours of cutting, filing, sanding, and scraping, I have fallen in love with this piece of wood and all of its flaws. Because of its flaws i decided back the limbs. (Here is where you see my flaws.) First, i decided to back the limbs with a canvas type material. I used TBII and some material a salvaged from a curtain blind. I coated the limb with glue, applied the material, then put another thin coat on the material and left it to dry. As i was cleaning up the scraps i found the tag from the material 40/60 cotton/polyester blend. I looked online to see if it would be ok but found mixed opinions on the topic. So i went to bed but i couldn't stop thinking about the consequences of a bad decision (broken bow=broken heart). I climb out of bed, crutches and all, go down stairs to the garage and remove the still wet material. Second attempt, the glue was still wet so i cut some strips of paper bag, because i didn't have long enough paper to do it one piece and placed them on the limbs. I grabbed my bottle of TBII to apply a light coat on top of the paper but only had enough glue to coat one side. As i stood there in disbelief, i had to laugh its 2am and i would have accomplished more if i had gone to bed at 9pm. Ultimately, i scrapped off the still wet paper and glue from the limbs. Now my plan is to use one coat of heavy duty drywall tape and TBII for the first coat and do one coat of paper on top. I like the way paper looks better than the drywall tape. Is it a bad idea to mix backing materials? Also, can i use TBIII after the limbs have already soaked up some TBII glue that has dried?