Double wrap of D thread is too much. Use A under and A over. Burnish the threads too. that will often fill the little gaps where the silver is leaking through. You can double wrap with the A no problem but with two layers of D , the wrap will be too thick. i can't imagine why you would want to overwrap a guide with D thread?
If you underwrap with A and overwrap with D, you probably won't need to double wrap. But as earlier mentioned, use your burnishing tool to smooth the threads and let them fall in better. With a single wrap of D, once you flex coat the wrap most small imperfections will disappear. Nice job.
Three-fourths of the Earth's surface is water, and one-fourth is land. It is quite clear that the good Lord intended us to spend triple the amount of time fishing as taking care of the lawn.