When you want to describe something that has been tried and proven over time, the phrase "more time-tested" fits well. However, there are also other ways to convey this meaning. For instance, you could use the words "established," "tried and true," "proven," "venerable," or "seasoned." You might also use phrases like "long-standing," "well-established," or "time-honored." These synonyms not only add variety to your writing, but they also broaden your vocabulary, allowing you to choose the perfect word for the tone and style you wish to convey. Remember, the goal is to get your message across effectively, and using a range of synonyms is one way to enhance your writing.