The Replay is one of my favorites of the newer yo-yos. So much pure fun. The Replay has a shorter axle rod and comes standard with a Half Spec C bearing. So this one is an old school Responsive play yo-yo. And a very good one too. So no modifications are needed.
The Replay is restricted to just a few colors, but even the colors are fun. They look like a bright, gummy bear. The Replay Pro comes in a wide range of colors, but can be converted to the same setup as the Replay easily.