I had posted about the MD problem (slow) and even had noticed that DE was faster.
I had wild fluctuations in my download speeds that showed up when using 'dashboard' style speedtesters.
I have just changed my wireless card (PCI) and now have rock-steady results on the same speed tests.
So I tried MD and guess what...............
Apologies for some old posts.
p.s. DE was not effected to the same extent by the wild fluctuations as MD.
Thank you for your feedback.
I forwarded this to the Mass Downloader developers for information.