Stop saying 'you're buying nuffink ... you're only 'trying' it'
When a viewer completes the purchase process ... even with flexis ... even with an x day return guarantee, they have PURCHASED the item, a transaction of SALE has been completed.
If the viewer was indeed buying nuffink and only trying it, then why ask for any payment up front whatsoever? Send the product out on a 30 day no quibble return guarantee with no initial payment. Then your waffle would at least be based on fact.
Stop talking GUFF.