HostBill offers vast variety of order pages (cart templates - full list available at http://hostbillapp.com/features/order-pages.php). You can now test which one of them best suits your business model and works best with your customers. Enable A/B Testing plugin and utilize Google Analytics experiments to increase your sales!
Paste this code in HostBill plugin
Once everything is set-up and client visits your category with test enabled Google decides which orderpage to display: original one or the test variant. If goal is met (conversion tracking) orderpage that lead to it gets a point - you'll be able to review statistics in Analytics Panel.
You can create multiple tests for all of your orderpages. We suggest checking Experiments how to at Google Support Pages.