While I love the new ability within progressive fields to replace with queued progressive fields or leave on the form, I'd like to see a 3rd option, where the field is simply removed and not shown. That way, if there are specific categories that are shown in a particular order, when the 2nd level is completed, the respondant will not be asked any additional questions in that area. For instance, if I ask for personal(ish) info, say first name, but want something else, say phone, to replace that field on the 2nd form filled, I might not want to ask something business-related in that same spot next time. Or, I might have gotten all I need from them, and the 3rd form fill, I might just ask for email, without all the other fields.
