Hello,
The best practice suggestion would probably be to select the newest incremental when originally restoring the image. When performing a restoration of a full volume, you can select the base image or any incremental in the chain.
There isn't a way to only restore incremental changes, as the incremental backups are segments of the same "chain", so to speak, and are not stand alone backups.
You can however manually mount a backup, or open it in Recovery Point Browser, and manually restore individual file/folder components.
Let me know if I've misunderstood your question.
Thanks.