For regular wear I rather like my 4yd box and 5yd knife kilts; partially I'm cheap but I just don't understand the adding of all the extra yards just to have the back sway. The only 8yd I have always feels like it sags in the back while all my others feel like that sit evenly but they also have a more even weight distribution. I've never regretted my 5 yard kilt, I'm having one made now and am eagerly awaiting the call that says it will be done.