One of the aspects that bugs me the most about just about every field day seminar I've attended, is that the vast majority of the time the presenters are talking rather than doing, actually showing how they prune a huge tree to class one standards, or removing a dangerous tree over highly valued fragile targets themselves.
Showing how it's done is a universal language that needs no interpreters, and a Q&A session after the work is done is sufficient to answer any particular questions the audience may have about equipment, techniques etc.
Not saying this isn't done already by some, just not enough IMO at the many seminars I've attended in my area lately.
Magargal and I did attend a field day event many years ago on the SFSU campus where the removed a huge dying pine with a large crane. We could tell it was most assuredly the real deal, because two of the climbers came out of the tree well bloodied before the third climber finished the tree without further incident.
Not very flattering for the presenters of course. But at least it was the real deal, live with no editing, and Magargal and I gave them a hearty round of applause for their real time demonstration.
jomoco