In the TW video review of ALU Power Rough, Troy Lara said he pre-stretched ALU Power Rough. It played well after that and maintained it's tension (44lbs) for a long time. Has anyone else pre-streched their polys, especially the ALU Rough? Did it make the string dead from the outset? I though that you shouldn't pre-stretch polys - though Kirshbaum does it for all their strings.