My quilt seems to be "bouncing" as I quilt it. This is a small practice sandwich as I am just starting out with my Avante. It is approximately 38 x 50 and I am near the bottom. Is this the dreaded trampoline effect? If I loosen the tension on the quilt then it seems to be very noisy and the bungee cords bounce quite a bit. Any suggestions as to how to find the correct tension for the quilt sandwich? Thanks