I just purchased a new 737. I love the mower but I've noticed the cut doesn't seem to be quite as low as my 757 on the 1.5" setting. I know they are basically the same mower, but it seems the 737 cuts close to a half inch higher on the same setting. I've noticed the chain bolts on the deck appear that I could let it down about a half inch. Is it that simple or would that somehow make my deck unlevel? Are there adjustments that need to be made to the lift springs or can I just simply loosen the bolts and let the deck down a little?