I loathe extra seminar forms, especially when they are taught on the lower rank level. They are usually taught in a single day. Most people tape them and go back to review from the tape. Applications are almost never taught because there isn't time. This may be ok for an advanced student with the foundation to glean applications for themselves, but it is not for a lower rank. I disagree with the frequency that they are taught, but the counter-argument in SD is that it helps preserve the form and it keeps the instructor with a nice boost of income so they can keep teaching full time. Some schools do this more than others. I have only attended 2 seminars in my 14 years of practice.