Yep, you're good to go. Smart move in decreasing the poundage, though. You were certainly underspined w/ your current set up. You will cause no damage to you bow at all w/ that set up.

Just an FYI, minimum arrow weight is 5 grains per pound of draw weight. So if you are shooting 60#, the MINIMUM your arrow should weigh is 350 gr. Most hunters like to get closer to the 6 grain per pound rule. I, myself, like it right around 5.8.