That's way too much distortion. When I string Babolat pure storm racquets there is no measurable difference in racquet shape when the crosses and mains are at different tensions...Haven't deviated a lot, but a few pounds. When I mount, all mounting points touch and are snug to the racquet. No play/movement.
Stringer, coach, and previous 5.5 player.
Head prestige mid, Luxilon Alu power