Hi Charles
Thanks for the great advice.
1. He wants to change it 'cause it is broken ( Slow rising and gives error every now and then.
2. We stay in DARKEST Africa, so no Landy parts are cheap or available.
3. If he can fit the coils, wouldn't the bags and comp work less, last longer?
4. I told him to buy a P38. but he is a wiseass ! ! !