About upkeep and throw weapons

[StarFire]

4 x Throw Lance 's REAL upkeep = 1 x Throw Lance and 3 x empty 's REAL upkeep?
or 4:1 ?

I haven't seen two Throw Lance repaired at the same round but I really take 2 x Throw Lances.

[the real god emperor]

Each throwing lance has the same chance to get repaired.If you have 4, you may repair one of them, or four of them, or none of them... at the same time.

[StarFire]

Each throwing lance has the same chance to get repaired.If you have 4, you may repair one of them, or four of them, or none of them... at the same time.

thanks