If you can do frontside feebles on transition I am very envious.
Backside is a different story though, been doing those forever and they're wayyyy easier, I love doing them both to fakie or regular.
Frontside Smiths are one of the best feeling tricks when locked in with rail buried on the coping, and on pool coping, forget about it shit can't be beat.
Definitely a favorite but lately trying to float bigger backside ollies to tail and backside disasters, those feel so much better when you put some loft into them and get a loud smack.