those are both great damas. the pro models ive heard start slick and get grippier over time. the atack is sticky for a while and then gets to a 'normal' tack after a few months of heavy play.
now, if Youll be able to train for those tricks with either of those?
id say practice airplanes and jumping sticks until you can do them 3 in-a-row, first try.
those are the motions and foundation for lunars and stilts, imo, and should be hammered
if this is your first kendama, i would recommend to play with only one of those for at least a week. from my experience, the 2012+ tributes are solid and can take a beating. ive heard the same from sweets but dont have personal experience. i have tributes and they are by far the least damaged of my damas and have seen the most blunders and aggressive spiking

so, short answer - the atack will be stickier but may chip if youre too hard on it. i would suggest to learn/daily on the pro tribute and then transition to the sweets