Your leaks are probably NOT horribly excessive. At least not as bad as SH is making them out to be.
Instead the statistic reporting the % of time in large leak is based on a ResMed calculation number and that number won't work for your Respironics machine.
Open SH and go to Preferences and then the CPAP tab. SH Defaults to a red line leak threshold of 24 L/min which is a ResMed leak number...won't work with your machine. Your red line threshold number is more like 75...so change the 24 to 75 or just turn off that statistic by removing the check mark.
Please don't do snippets...makes for more work for members to try to evaluate anything.
Do one nice clean image that has all the details in one image.
viewtopic/t158560/How-to-post-images-for-review.html
Your settings point to apap trial mode as reported by SleepyHead but the statistics point to a fixed pressure being used.
The model 450 only had 30 days available in apap trial mode. I suspect you have used those up. You may be able to get more 30 day chunks by doing a total reset of the machine...erase all prior therapy data. I think those models allowed up to 5 resets and then you are stuck with fixed pressure mode forever with no ability to do any apap auto adjusting ranges despite what the settings might show.
I may have to RISE but I refuse to SHINE.
