installing skin wefts without sandwiching

So I am going to have someone help me with my seamless skin wefts.  I want to install with protac, but I don't like sandwiching because in my experience it makes the hair lay too flat against my head, if that makes any sense.  Will they be able to last 4 weeks without sandwiching?  They will be double wefts.  Thanks!

I use a double sandwiching technique where I use LG to glue the underside of a covering weft on top of the highest Protac tape. This covers the tape and keeps that flatness you describe from happening. You can probably keep just wefts with LG in your hair for a week or two at a time but I doubt if they will last much longer without some kind of sandwiching or having a Protac tape underneath them.