Follow-Up:
On balance with a cross section of people CPAP with weight loss is the most effective treatment available with the issue being ability to tolerate CPAP. CPAP has also not yet been shown to be effective in people with mild sleep apnoea (AHI<30). Surgery is typically effective in around 40-50% of cases and usually where some sort of abnormality of the airway exists. The benefits of surg are commonly lost when people gain weight after surgery. The various surg. proceedures used can sometimes be ineffective after some time period (regression to the earlier severity- the apnoea comes back). You should definately consider surgery as an option, it may not eliminate your "events" but it may drastically reduce them. This is especially true if CPAP is not right for you (have you tried some of the newer easier to tolerate designs?). You should perhaps avoid adjusting the CPAP machine yourself- this really should be done in a sleep lab while you are being monitored.