I think you have gotten some great advise! Think of this as test driving a car. You might not buy the first model you drive, but driving one will help you narrow your requirements. Also pick the brains of people you know who own long arms (in person as well as here). Most long armers are more than willing to tell you why they picked the one they did. I finally found my favorite one but I had 3 set ups before I got there! Each one taught me something...but I am glad I am done!