So, I see the prices of the GWF-D1000 are starting to subside a little. However, upon doing some research, it appears the new Frogman still has the old technology underneath? I am getting ready to pull the trigger on one of the two, but wonder if the price of the new D1000 is justifiable if the older GWF-1000 has mostly similar internals at half the cost? I can get a GWF-1000 for under $400 whereas the GWF-D1000 is hovering around $900 on average. So, I need all of you Frogman loyalist to please educate me and give me advice on pros/cons of each and how I should proceed. I really appreciate it!!