Niban,
This is one of my favorite stocks. Killed the pig twice on PB1 and fully expect to do it again.
Set a rolling stop after a big run...get sensible, not angry otherwise you'll miss the opportunity again.
Don't get greedy...if you buy in at spud...there is no reason for not being free carried relatively early on in these risk laden ventures....makes for a far more enjoyable journey to TD.