Take a first aid kit and at least one other person with you - Just in case you do fall whilst walking [There should be 4 of you in a party ideally]. And log your route with someone and agree to contact them at a certain time so the alarm can be raised in an emergency.

You seem experienced but you can't be too careful, a friend worked in Mountain Rescue for the RAF for about 8 years and has passed on lots of nightmare stories. I've also had two friends successfully airlifted in the Lakes because they were careful and planned before hand - shame they couldn't keep their eyes open!

Sorry to be a doom merchant and I hope you have a safe and successful tip :-)