I agree with all the points listed above. I would like to add that no, you don't "need" leaders but then you'll have to have an extra long backing fabric and attach every backing to the takeup & payout rollers which will be a giant pain so leaders will make your life easier. My leaders are currently double-sided velcro'd onto the poles. On my first frame, they were taped on with painters tape. I think I like that method better and will go back to it if/when the velcro wears out on my current frame.