looking for good dual zone triggers to convert my 60's Ludwig kit without any hole drilling. Heard about triggers from a company called ddt called their truss trigger model which mounts across the drum with a cone trigger in the middle and fastens on each side on the rim and a rim trigger on one end. Any body know of these or have experience with another brand that works well? Looking for quality. Some complaints around on the ddrum ones, pintech and even the rolands . I have the top of the line td 30 module so looking for something good !