In Flight Emergency

In the 2009 15M Nationals at Aston Down we were sent one day to
Northampton, Winslow, and Kettering and were confronted by a huge dead area
near the turns that simply stopped everyone dead in their tracks. I managed
to make the NOS and WSL turns but couldn't see a way into the KES turn
until I took a cloud climb near Banbury and got enough height to fly across
the gap to a squall line I could see running N over Milton Keynes.

I arrived at cloud base just as the line started sparking and decided
(having read the reports referred to earlier) that discretion was the best
course, ran away and landed in a field.

Was there a safe way to use the squall line that was sparking? Rollings,
what is your advice?

Jim