Aren’t you making more work for yourself with double recording and using plastic tape that has to be removed? Putting olive on Field Maps as honeysuckle has no benefit. Put the whole area as woody weeds.
I don't have parties. What I did was collect some of the weeds to show people what to look for, then work through an area. Some plants got missed but it was effective.
I understand Mike but it takes me such a long time with my old mobile to get accuracy; so in this case I decided to map for the main crop i.e. honeysuckle and just mentioned that 1 Olive is there too. It would be great to have some more people mapping ...