I have 6 clients going caribou hunting next month and two of them have their mind set that they are going to inject them in the field and save the velvet. I tried to explain that there is a small window in which this will work and by the time they get to Michigan from Alaska on the plane they will most likely be trashed anyway from scraping and just the way airlines are. I also doubt that the airlines will transport them with Formaldehyde in and on them. Can anyone recommend an injection fluid and tell me if it will work? We do deer here with knoblocks or freeze drying but the Caribou I'm not seeing happening.