Just wondering if anyone has used the sunflower kit for a Geringhoff rotodisc. Either with the active knife or without. The video on the Geringhoff site looks like it works pretty good but it also looks like they are in lower population confection sunflowers. We grow oils at a higher pop 25-26000. Any thoughts on ease of converting, cost, stubble length, change in combine capacity vs pans, etc. would be greatly appreciated.