I sewed a pillow for my DH several months ago using a cotton cover and wool batting from Wazoodle. He rejected it, saying the batting was too lumpy. I've tried a few different variations -- stuffing it differently, buying alpaca (Pacafil) batting to stuff it (unfortunately, that *really* didn't work because it's too thin and compacted already), "massaging" the wool batting, etc. I tried another attempt today and my DH said it just wasn't going to work.
: Keep in mind he's really picky about his pillows. Really, really picky.
The lumpiness *is* an issue, but wool pillows compact so I think the lumps could be minimized with use. But my DH isn't willing to do that.