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I already commented on this in your other post, but to save you searching...
I wouldn't be leaping into the Quattro FX too quickly. Given the masks you've tried it is unlikely to fit any better. The Quattro FX is very prone to leak into the eyes and they are also very flimsy. Don't be fooled by ResMed's claims about the Quattro FX for her being especially made for women either. It's just the same as the standard Quattro FX with a pink strap.
When you adjust the Amara View there are a couple of things which may be helpful to remember. 1 - Keep it nice and snug up under your nose. 2 - it often fits better when a the top straps are a little looser allowing it to flex a little.
Some data from your machine would be best way to start investigating if it is doing its job.
Have a look at the Amara View or the DreamWear Full Face masks from Respironics. They both avoid that eyes and may be helpful if it is caused by the mask pressing on your face. Google some pictures to get an idea.
Yes, I am a real sleep tech.
I do know that some machines, particularly autos send a pressure pulse down the tube to work out if an events is obstructive or central. This may be responsible for the "bouncing" you feel. Other than that, if EPR is turned off your pressure should remain constant. If you watch the display as you breathe, it should tell you of the pressure is fluctuating. Turning the machine off and on again, as you have described, is exactly what you are supposed to do if the pressure is to high. It will restart it a low pressure.
I wouldn't worry too much about your respiration rate. It's slightly above average but not excessive. Also, there's not a lot you can do about it in the short term anyway. You body will breathe how it needs to breathe in order to get the job done. It may simply be a result of your previous heart problems. I would not normally suggest this but, as you seem to be getting little help from your physicians, you could try to get a hold of an oximeter to use overnight. The only reason I mention it is that if your oxygen is above 90% and fairly stable you will know that you don't have much to worry about, which could provide peace of mind. If your oxygen levels are consistently below 90% then a word to your respiratory specialist could be in order.
The DreamWear intranasal (as opposed to under-nose)from Respironcs has proven very popular with many of my patients for just that reason. You may wish to have a look.
Your sleep doctor is wrong. BiPAP most certainly can initiate breaths when set appropriately. You just need to know what you are doing. It is also incorrect to to say that BiPAP "is similar to CPAP, except can deliver more pressure on inspiration to get past blockages". It is not the inspiratory pressure, but the expiratory pressure which prevents blockage in your upper airway. The increased pressure on inspiration is to increase the volume of air which you inhale. To summarise:
CPAP is used to treat upper airway obstruction (OSA)
BiPAP is quite different it is used to treat respiratory failure and hypoventilation by increasing the volume of air you breathe in and out. It can also prevent obstruction at the same time. It is used to treat central apnoea when CO2 is not too low.
ASV is not used to ventilate the patient. It is used for treating central apnoea when extra ventilation is NOT required, i.e. when the patient is having central events but their oxygen and CO2 levels are otherwise OK.
Have a look at the DreamWear under-the-nose mask. It basically works like an intranasal mask but it doesn't have prongs that go up your nose. Instead the cushion is like a little cup just under your nose. It might give you the best of both worlds. Google "dreamwear under nose mask" for some pictures. I know of only one person who has managed to successfully use the Oracle. Plenty have tried and found it unworkable.
