Your macros are fantastic! Much sharper than mine (thank you so much for the mention)! My old Sony SLT-A55V is heavy and the Tamron 90 mm lens is quite heavy, too. Put that together with my aging vision and sharpness is a challenge! I assume you did not have to use a tripod. I tried but gave up. As you mention, you really need to control the position of the lens to the object with great precision and to do that you need flexibility. Great work--I am looking forward to seeing more of it. A new world is visible!