In general I like 180 and 200g records better, but I've also found that using a record grip (I use a KAB) helps make light records (e.g., 70g Dynaflex) sound more like 140-180g records. Each weight has a different amount of damping and a different resonant frequency. Try a record grip; you'd be surprised at how much it helps all records have a similar tonal balance and noise floor.
