Your score is well above what's needed for most mortgage products, what score are you trying to reach?
If you have an established history... your scores can be absurdly flat over time. Quick fixes to credit are either revolving utilization related (which sounds like you're probably pretty there but it wouldn't hurt to post your revolving tradelines in current balance / credit limit fasion and maybe there's some small tweaks... see AZEO - all zero except one - method on the forums if you haven't done so already) or getting negatives deleted. There aren't really other options.
