Re: [BASE813] Line Burns
With a properly tailgated canopy (where is your tailgate? does it snug right up against the line attachment tabs?) it ought to be impossible to get those kind of burns after line stretch (because the lines stay in the tail until they're tight). Assuming that you are jumping mostly slider down (by your location), and aren't doing any unpacked jumps (which would give the lines all kinds of opportunities to burn the fabric), the burns have to be developing on the way to line stretch.
Are the burns growing? Or have you just noticed them once (so they might be the result of a single freak opening)?
The only way that the lines would be able to burn the stabilizer prior to line stretch is if your tail pocket is dumping them (unlikely unless your velcro is pretty worn out, or you aren't closing it tightly, especially unlikely because Vertigo has the better style anti-slump flap that wraps the outside).
My two best guesses would be:
a) line dump on a single freak opening caused all the burning (did you have a weird/bad opening recently)?
or
b) your tailgate is too low, leaving significant distance of lines above it (most likely steering line), that can snap around the outside before the tailgate is blown (then, when the tailgate is blown, the fabric has to pull fast through the loop of steering line).
Neither of these ideas accounts for it only being on one side, though.
<scratching head and shrugging> I dunno, what do you think?