Thanks for the replies! We ended up staying at mikes and did 4 dives. 2 went fairly well and 2 not so well.
First dive was from the dock at Mikes. Highlight was the sunken boat at 60' covered with lots of little creatures and sponges.
Second was flagpole. I didn't remember to look for the buoy. Based on a "map in progress" we guessed at the spot to drop and landed right on top of the reef!
So far so good...
Third dive was Octopus Hole. We looked at this map:
http://www.pnwscuba.com/sitemaps/octopushole.gif
We thought we saw the swim platform from a distance (long swim), but when we got there we were skeptical if it was the "swim platform".
I set my compass heading and we submerged. We bottomed out around 50+'. At this point my compass seemed to be sticking and continually changing course. I was unable to keep a heading. We never found the wall
. After only a few minutes I noticed we had dropped down to almost 80'. My buddy also noticed a fluctuation in pressure. The gauge was jumping almost 500psi. (i.e. reading 1000psi one moment then 1500). We decided to call it and slowly surfaced.
Forth dive was back at flagpole with some additional friends. We dropped near the buoy this time, in hind sight, I'm not sure if this was the correct one. After reaching almost 80' and not seeing the bottom we went back up to around 60'. We were hoping to move inland and find the shallower reef. Again the compass was on the fritz and navigation became difficult. Again there was pressure flux in not 1 but 2 sets of gear.
After discussing the pressure flux we thought it might have to do with the reserve valve (?). 2 of the 4 tanks we had were older(?) and had a j-valve(?) or reserve(?) The 2 people using these tanks experienced the flux.
There is one other thing I would like to mention. We were having difficulty with weight and finding neutral buoyancy. My previous dives had been in warm water ( no wetsuit ). I do not remember having much difficulty diving or surfacing. Im not sure if having a 7ml suit and over 30lbs was the cause but control seemed a bit of a challenge.
Not the best of trips but some good lessons learned and good experiences to have. I'm sure I'll be back up there again!