Board Thread:Questions and Answers/@comment-38947763-20190921181204/@comment-39718735-20200525201234

So why can't an ability stand become the defining stand of a person? It'd not be the only stand that has been shared among several people. The point though, is that each person may give a different spin to that stand (all the members of the Boom Boom family had the same stand, yet it worked slightly differently with each member, not even Scary Monsters has shown the same abilities on two different users). Whether Jotaro's Star Platinum would be modified if he learned hamon is uncertain, but it may be actually possible.

Scan is fully based on whether you have the eye or not, Gyro was not going to manifest a "corpse eye replacement" for it and that wasn't necessary for the other stands awakened from the corpse (Johnny didn't need to generate a corpse arm replacement for example), it doesn't show any other ability not related to that. Gyro didn't even show that ability again even when he had enough time to do so later and the steel ball seemed to have already been "standified" (to give it a name), it was able to touch D4C's hand, you can't shoot a normal bullet to a stand and deflect its hand with it.

Ticket to Ride is created by the merging of Lucy and the Saint's Corpse, she even gets in contact with parts of the stand before and she gets nothing unlike for example Johnny. Whether she could still see stands after that is once again never shown.

Regarding whether's mentioned if Ball Breaker is his stand or not in databooks or so, what's the point of that? He was shown using that stand and given his personality and combat style he wouldn't get anything else, when his full combat style is based on that what else would he develop as a stand? Scan would be a nice thing to get yet he ultimately obtained something else and even better.

Even Araki says Hermit Purple is "the visualization of Ripple as a stand" not of Joseph's abilities (if his stand would need to be more in touch with his combat style he'd have got something related to his clackers instead I guess) "I needed to decide how I would visualize Ripple as a Stand. Ripple is life energy that travels through the entire body through a special breathing method. Therefore, a concrete visualization of it would be some sort of wire wrapped around the entire body, like a vine. If Jotaro's group time traveled to the world of Part 2, they would probably be able to see "Hermit Purple" wrapped around Joseph just like in Part 3" Moreover not one but two hamon users shared that same exact stand. Would Caesar, Lisa or Will get that same exact stand? It's probable that not since the stand may get influenced by the user's personality or combat style (Wekapipo wouldn't get the same Ball Breaker for sure).

" Osiris and Boy II Man can still be physically summoned, even if they require specific tasks in order for the user to use their Stand abilities " Sorry but that was never shown, any time we saw their stands they summoned them by performing those specific abilities. Also we've seen Johnny using Tusk 4 even when he wasn't neither riding his horse neither shooting a nail bullet (as shown in the Debunking Araki Forgot Part 7 video at 20:30). Yet we won't ever know if Gyro would be able to manifest it without the Golden Spin will be never known (probably he wouldn't, moreover why would he need to do so at all?).