3 outta the 5 last northstars i have purchased have cracked in normal play. and my Dv888 had a strong vibe outta the box. I’m not mad, i just want to know if I’m the only one having such horrible luck. i have given the cracked northstars to friends, and the viby Dv888 got stolen at school, along with my genesis, Burnside, and Asteroid. 
Two of my Northstars have cracked, but none of my DV888’s were abnormally vibey (Both the old $69.99 one and the new, cheaper one), nor have any of my expensive throws been stolen. I think the Northstars were semi-normal (They have been known to crack), but the rest is luck, or lack of thereof I should say.
Off topic, but how did 4 of your yoyos get stolen?
all in the same location unattended I would presume.
If I am correct the old Northstars where particularly infamous for cracking. You should contact YYF when you have a problem they usually are completely cool helping get your problems fixed.
Almost a year ago, I once bought a dv888 that played perfect the first day. But the next day, it was responsive no matter what bearing I used (tight bearing seat maybe).
Never had a northstar crack, though.
I’ve had two Northstar crack, but not from hitting the ground.
Never played a Dv888.
I received a DV888 as a gift from a family member and it had a pretty nasty vibe out of the box. YYF replaced it though with no issue. I have heard of Northstars having issues with cracks but I’ve never thrown one myself.
Out of the 3 northstars I have had none of them craked (and I am getting a 4th in a trade soon). I have not owned a dv888 but I have played one for about a month (at a friends house) but that was just one dv888.
I put them in my locker and some kid busted my locker door open when most of our school was outside :-[ i had a KK in the Genesis to :-\
I have a dv888, and when I throw it right, its nice and smooth.
Similarly, my Northstar has taken a fair amount of abuse and is 100% intact. Both were bought last year. The dv888 is 2011 model. I think I bought both the Northstar and the dv888 at the same time.
I have an old Northstar and DV888 and no problems so far.
I’m careful not to over tighten or leave the Northstar in the sun.