I did the most extensive research I could and contacted the author/purchaser of the Eagnas machine from the other thread. In the end the result was this, the Eagnas will get the job done but you wouldn't want to use it to string many, many racquets whereas the Stringway is probably of much higher quality. You get what you pay for.
If the automatic dropweight is what you want, save your money & buy a stringway.
Back to using POGs. Why did I ever leave you dear friend?