I´ve been operating since 2010 with a small Sachtler rig and I think that has been a good experience because I´vnt learned to operate with a non top of the line sled.
it´s like when you play the worst guitar from younger and then you want to buy the real SG because you know how to fly on it...
I`m soon to be able to get my first and last big rig.
I have seen all the models in the market but I have tried just a few. what about the arm, I have no doubts, PRO. ( I´m talking about to get an equipment to work for 25 years more )
what I think just in inspiration mode