When I started embroidery I read this book, it is full of advices. It is wonderfull what could do a master with simple tools...
How many heads do you have ?
Me, embroidery in not my main core business, I have 2 heads, and I subcontract digitizing in india, cheap, fast turnaround, and I can focus on more important part of my business.
I only do lettering/name very simple design with embird.
With truesizer from wilcom (very cheap) and I can make nice proof for customer.