Never, unless you replace the o-rings with silicone. In that case you might have to replace it every year or two. With silicone it really depends on how well the silicone job is.
Plenty long.
It is purely preference.
Generally YoYoJam yo-yos may have some vibe; not much mind you, but some. They are plenty easy to tune though and once they are tuned properly they are very smooth.
I reccomend it… I also reccomend silicone rings, and shims…
Thats an X-ConVict… It spins very long and thats a trick on par with Ladder Escape.
O-rings last FOR EVER… If they do tear or snap or break or wear out (Never heard of that ever happening) Im sure you can buy extras from a hard ware store…
Now you might wanna replace it with flush silicone after you get better along with the shims to add a bit of space to the gap and make it smoother and more unresponsive.
Silicone does wear out with use though… Depending on how hard and often you play it will last a few months to probably a year… It will last longer but play is not as good.
Oh yea just a reminder a yo-yo does not make you better, so the spin time really depends on you.
And Yes X-con is a great yoyo, easy to snap start but it’s not really good for suicides.Plus this yoyo was almost made for regends (regeneration)so it might be cool to learn it with the x-con.