Aileron 69
Thanks mate you've cheered me up. My 210 although it has Flint tanks is only a pup at just over 10,000 hours. Also it spends most of it's time in smooth air. It would appear that what's good for me is also good for the plane. I checked with a big 210 operator in WA & NT and they have had no problems even on their 30,000 hr units. My contact said they fly high whenever they can and their fleet doesn't have tip tanks.
Cheers RA