People, people! Give me a break! I have been doing this for over 33 years! I train, and have worked with the best trainers in North America. Training alone can not solve this problem. It's not that simple. A momentary lapse in the best drivers attention can be a disaster. You all seem to agree that the mast creates a visual obstruction, right? Then why can't you understand my point of getting rid of that obstruction altogether? By continuing to accept the risk as you have, you are a part of the problem, not the solution. We need to stand together and make it known to the manufacturers that we want/need a better solution from them. The Still RXX concept tested in Europe a couple years ago was a huge leap in technology and safety. But it died before coming to market. The JCB Teletruk shows some promise, but it has limitations too. The so called "Trucker's Mast" doesn't do it either, still has vision issues.
So, thanks for all the comments and suggestions. I'm done with the training discussion, so no more on that please. If you have any news on a low profile mast configurations, or want to help me work to create a design, I'd welcome it! Thanks all, and the best of the New Year to you.