Well our age limits are 50 to 99 because we find older men are more attentive to insuring N's pleasure -we've turned down single guys in their 40's as "too young" which probably isn't something they hear often. We agree with the other posters that you need to show why you should be picked over all the others who have no doubt responded. If you don't say you can entertain we also think you are likely cheating on your significant other.
We've found our current "go-to-guy" and he is 59. What attracted N to him was his honest face pictures and his expressed interest in satisfying the ladies orally. Then it turns out he can last longer than most guys she has met and he gets hard again fast. And he is a genuinely nice guy who we felt comfortable having up to the cabin for a weekend.
So up your game and add some pictures if you want a positive response