"Hi" means the share hash has high - which means the difficulty value was low.
I posted an explanation of "hi" vs "low" before, so I wont repeat that, but basically your miner sent a bunch of shares with the difficulty below what the pool asked for.
e.g. if the pool says send me 4098 diff shares and your miner sends 410 diff shares, then they are "hi" and rejected.

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My S3's mine LSDiff average around 360-450 mark I have not seen it ever high like 4098,

So would my shares just be rejected?