I keep seeing messages about chipboard and so I know people like it. I hate it! I use it on a scrapbook page, put the page into a page protector and into my scrapbook. The next time I get my book out and turn a page, the chipboard pops off. Stickers, etc. bend with the page turn and stay intact. It seems chipboard has no "bend" as the pages bend and just won't stap put. I recently bought a couple Creative Memories cricut cartridges that came with chipboard pieces and I'm ready to just throw them out!
Yes, I've had that trouble, and I had the same problem with Thickers. I now add my own adhesive as well: ATG or Glossy Accents, or glue dots, depending on the shape/size. You're right, they don't have any "bend".
I usually add extra adhesive to chipboard too. For Thickers, I use my 3L adhesive and for larger pieces, I use that red-line tape. It seems to be really strong - you have to place it where you want it coz' it stays stuck! Hope you find something that will work for you. Maria