One attendee reported several interesting sound bytes or bites from the seminar. He recalled that Andy from OWW said they have had good results from Alpha Liners when used with the Limb Logic on transtibial residual limbs; as for tranfemoral, he said they don't encourage using elevated vacuum for transfemoral. He also said the more vacuum the better unless there are unusual skin issues. He likes a minimum of 14 mm Hg for good results.
Since it is my blog, I get to be the first reponder. As for transfemoral, if people are happy with thier less complicated sytems, I agree that there is no need to change to EV, but it is sure nice to have that tool when you need more stability, better suspension, less volumetic instability, and more hip range of motion.