Done reel service today.Completeley stripped,all parts cleaned in paraffin,dried re-lubed & reassembled,only problem i had was that i took the free spool lever out before reading your advice.Anyway managed after a bit of a fiddle.
I think compared to the ABU reels, the penn was easier to overhaul and seemed to be more sturdy inside,not that theres out wrang with ABUs.
All i had was DIAWA reel oil,for the bearings and a tiny touch of Vaseline on the main gears as per recommendation of Terry at Reel sport.The reels now running like a Rolls Royce.