Surpassing 15 Star Tyrant Equip

I'm pretty sure if the item were to be destroyed via star force you'd lose all the benefits of transposing it from tyrant in the first place, meaning you'd have to have an astronomically high amount of luck to even pull it off.

highely unlikely reason is this the star that was boom was on superior item
and sweet water isn't a superior item so it lose stats base on preset

here a example

I have a superior gollux pendant + 8 has 52 stats to all and 37 attack

now I ma throw some EE on it
let say I throw in 5 star w/o starforce

and I fail to get any good stats it only add def unlucky
I end up getting 52 stats to alland 37 attack

now I ma use starforce till it break
I will get a spell traits
however the stats I get isn't the scrolled stats I get I lose stats cuz the new startforce has preset stats added on each star
so I had 5 star that didn't add any stats will lose the same amount on preset stats
example using star force on that pendant I would gain 15 stats to all
since I didn't use starforce at that time I didn't gain that 15 statas
that mean the new clean gollux pendant stats will become 37 stats to all and 37 attack