Regards to replays:
If you require to save more replays. There is always the option of starting a blog post on your profile and when viewing your shot you wish to save click share , copy link and paste that replay to the blog post and so on for each new replay and you can give a short right up about the shot.
It`s not the same as adding a few more slots for replays but still allows shots to be saved and been seen via your profile.