The CB Weights? It's an individual preference.
With Edels, it's part of the fitting.
With SeeMore, I'd buy without CB weights, and see how you putt. If you're not happy, tape quarters together and tape them to the top of your grip - each quarter weighs 4-5g. Measure it. Yeah, I know it's a PITA. See how you lag with and without the quarters. Put more quarters on and measure the results - see if you get a consistent pattern of lagging near the hole as opposed to not having the weights or having less or more quarters -- ie, find the weight that works best. Once you have a weight of quarters you like, measure them on a small digital (kitchen/diet) scale and purchase the weight. You can cut a hole into the top of the grip and slip the weight into the grip. The certified balance people have all the tools.