I’m glad you got it all resolved to your satisfaction. I think I’d have pushed them to 20% but if you’re happy that’s fine.
The saddle will take a bit of getting used to but if you want an immediate improvement buy some cheap padded shorts (Decathlon do some).
If you haven’t got one buy a Track Pump so you can change your TPs. It’s a balance between comfort and speed but you’ll soon find the sweet spot. Also get a multi tool , some tyre levers and a spare inner tube to carry when out.
Enjoy.
And learn how to use them before you go!