ehhh gads 300 ft ? I don't go higher than a gg4 plant and no lower than potatoes and a dive is a really bad bar ,yea that was fun.... but it did take a year to plan and get everything organised...... that dive alone took 2 boats 10 people and 12 hours in the water all so i could see what it was like at 330 for 28 minutes..... you have to plan for the mental stresses as well, The euphoria... its like being drunk bad decisions are easy to make past 120 feet..... you literally only breathe enough oxygen to survive on.... oxygen is toxic as hell at depth so it really gets tricky with all the different gas blends you have to have set up for different depths....HeliOxi and triblends..... Joe they literally had to hoist me and my gear out of the water..... exhaustion took me at about 60 feet on the way up and all i could do was go limp and breathe at that point my dive was in very trusted hands but not my own...I couldn't switch gear or regulators on my own and had to breathe two more gas blends before getting out of the water.....but even that was planned for...... It took a week to get past the exhaustion.... Most divers about 98% of them never see and depth past 120 feet...... you have to want to go deep...Really want it..... My Girl Krista is going to 330 next month that's my primary dive partner.... we plan one deep dive a year through our shop...... In the world of Diving..... you earn your own chops..... ya know.... Want that king of respect from your peers and other divers... you have to earn it......