I used a Charge Spoon for my first ever DD ride and boy was my arse sore for the last 20-30 miles. For shorter rides it would most likely be fine. Ive seen the Charge Knife and the Selle Italia Max Flite Gel Flow Saddle get recommended a lot..
I bought and fitted the Selle Italia a few days ago but not had a chance to take the bike out for a spin due to the adverse weather conditions outside. The Selle should work better for me as it has a hole cut right in the middle of the saddle right where I was hurting.
Everyone is different. Just try and find the best one for you.