How do you spin jump when your sliding?

[miiplaywii]

I've seen some videos where people go out of bounds. They do this by spin jumping up walls that they would normally slide down. When I try, it won't let me spin jump because I'm sliding. Any tips?

 

[Chicagoan]

I can do it with Luigi, moving the mote very fast... I can climb some slides... but with Mario guy... no way

 

[doctorecs]

does luigi jump higher?

 

[sagema]

Yes. He also slides a little more than Mario. 104 Stars, 17 to go?