Most bowyers will not extend warranties on bows shot with arrows below 8 grains per pound (which tells you something) and you're a little below that. Your bow will not be stressed as much if you boost your arrow weight a bit, and I think you'll find it more enjoyable to shoot as well.
Adding some point weight or using weight tubes could help you out on that.
Metal risered Olympic style recurves and compounds can handle really light arrows with ease, but they're just not a good long term idea for your typical wood trad bow IMO.