Good deal, Not knowing what you dive profile was or your planned depth, I was just wondering why a 40% mix? Usually mixes above 40% are for excelerated decompression. Because that one had a problem mixing that gas not having all the info in front of him may not necessarily make him the one to avoid but the one to draw from. Without getting into max ata and limits of recreational dive computers, some folks need a little more info before they go beyond what is deemed to be the rcreational limits. So he/she may have been a good apple after all.