Well after receiving encouraging responses about my post about the learning curve of the F75 SE ,I decided to go look at one , I had to have it in my hands and physically examine it. That being said I got to turn it on and go through the menus etc, So I bought one and I am very impressed with this machine. I appreciate the amount of work that went into this machine and the owners manual is very well written and explains the machines operation in great detail. I know air testing is not the same as the ground but if it comes close I will truly be amazed, What a nicely well balanced machine and I am really looking forward to using the machine when the ground thaws.In the meantime I am going to be playing with the machine to become more proficent with it Thank you all that helped me realize that I could handle this machine . Ezra.