Thanks for the input guys.
I definitely don't have autosave enabled, I checked fsuipc.ini. Next flight I'll post the complete log file. For some daft reason last night I right clicked on the line in the linda console and selected "don't report this anymore" or something similar. Now when the sim freezes it doesn't report the line...
D:\Steam Library\steamapps\common\FSX\EFB_current_garmin.pln
Is there anyway to revert this change so it does report?
In terms of the timings Pete, yes the stutters are very random and sporadic!
Considering I have a lot of addons any idea what order to do this in? Best way to turn an add on off by deactivating the scenery in the library? Things live active sky I can just not run with the sim. I don't think the issue is relating to a particularly payware aircraft because of the 3 I normally fly (PMDG 737, A2A Comanche & MJCQ400) II experience stutter with all three.