I am ready to pull the trigger on the DR. I love the newest addition (Quilt Double Rider) to the lineup but I am just a little worried about the toughness and durability of the lamp leather. How does it compare to the calf leather? Is there a great difference? To make the decision easier, Drew said the quilted and 2011 DR & Moto are only available in lamb unless it's suede then he recommend calf suede.