Hi Pink Elephant. Thanks for taking the time to respond.
To be clear, it's not the font itself that it the problem as I'm not one of those who think a note isn't complete without at least six fonts including Comic Sans for emphasis. It's twofold:
1 Moving to V10 has meant all my existing notes have been changed with no clear path to do a batch change back. I really care that the move has messed up my existing notes, at least on the Laptop.
2. It's the SIZE of the font that is the problem. Many of us have less than perfect eyesight and in my case have found that an 18 point font manages to hit the sweet spot for legibility on a Retina MacBook without being excessively large when viewed on a desktop machine. I don't care that it's say Arial/Helvetica/Verdana whatever, I DO care that it's 16 point or take a hike.
For EN to do 1 without a solution shows contempt for customers.
Your solution offers a way out, but why not simply say "use this template as default for all new notes" and "apply this template to existing notes" or a selection thereof. I will give your suggestion a try, but I still see no way of applying it to my existing notes.
There's a thread elsewhere on here started by @Stathis who comments, "...." performance/productivity aspects are must-haves and there is no point keeping a productivity app that kills your productivity...."
That is what is starting to happen to me with V10. I'm only a plus user since I've found that fulfills my needs as a researcher, so I doubt I'll be missed if I do jump ship. However I will renew my sub whilst looking around.
PS: Does V10 allow export in .enex format?