I have the Ruby on my road bike and have no issues with the metal in the front when I ride in the drops. The cutout doesn't bother me either and I haven't had much success with cutouts on other saddles. I did have to change my shorts. I love Shebeast SSS shorts but needed more padding on the sides, the Ultra D's work better.

The Ariel has more padding on the back to slide off the saddle when climbing on a mtn bike and is sturdier to accomodate falls.

BTW, make sure the saddle is put on properly. I just got the Ariel for my mtn bike, had the shop put it on according to my fitting measurements, they didn't check my riding position, and it ended up to far back for me. In order for me to get my knee properly over the pedals I'm riding on the nose. My old saddle was too wide and forced me on the nose so I didn't notice until my back started hurting on the 3rd day of the Mickelson Trail tour. Back to the shop for an adjustment.

I have a tendency to slouch when riding and notice my saddle. Lifting my chest takes away the irritation.

Give yourself time to adjust to a new saddle with shorter training rides.