i've been sitting on the sidelines with this one wanting to take...

i've been sitting on the sidelines with this one wanting to take a position - seems like a lot of upside potential in the short term. I am concerned however at how long these results are taking. I know they have lab delays... but i thought i might have seen a bit more buying strength in the lead up to the results. Anyone else have any concerns over this? I am trying to decide between a monday buy and waiting for the results and possible paying a fair bit more.