RE: About O.S #8 plugs!
I have had a very similiar case maybe 5 years ago.An ASP 52 of a friend was constantly stopping after a time in flying.I insist him to change OS 8 plug with a hotter one,at last he agreed and after changing firstly a Fox idle bar plug and then with an OS A3 plug that stopping problem instantly went off.Notice that an idle bar plug also is the answer too.