This is my main tuning now. It takes me an hour or so to remember how to play in standard tuning... which I've been proficient with for 25 years. In other words, the chords are NOT interchangeable.

DADGAD is not any more an Open tuning than Standard tuning is Open Eminor7...

learn to play "G" with your little finger on the low "G".

Play C, and 'nub' out one of the 'thirds'

Love the 1-5-1 bottom strings, by moving them up and down the neck.

Play in the key of "D" as little as possible, or actually, to fall back on, or to play with "D" instruments...

Enjoy open strings, even when you go up the neck

When beginning this tuning, transcribe songs that you already know, and don't be afraid of yer ol' ca-po

Picks are fine, finger picking is heavenly!

Ya might want to get used to jumping around the neck... especially from Am to a full G.

Be patient, Be persistant, but most of all, don't try to do the 'same old licks' that you always have heard the smooth 'standards' do... Its time to make your own way now!

All the best! ttr

PS... if you feel 'stuck in a rut' at some point along the way... Listen to Pierre Bensusan, or Steven Fearing.