Id get the Mallet C's if anything the weight is not an issue with me. I am riding for fun and exercise... its like going to the gym and benchpressing 20lbs.
If it was a contest to see who could lift the weights X number of times the fastest (aka a race) then sure lighter weights are better, but when its at your own pace and just for fun the weight wont hurt.
Not to mention usually heavier is stronger and last longer. (and cost less )