(SAMPLE POST, STILL IN DRAFT MODE, LMK IF YOU'D LIKE ME TO WRITE THIS OUT)
How can you find ways to even the odds?
One way: change the rules.
Make it harder for one and/or easier for the other.
Swallow any pride, helps if you both have a developer mindset:
"What do you want to work on today?"
Examples:
* Shorter (junior?) or different (wood?) racquets
* Stand back / closer (serve from within court?)
* Less / more attempts:
When I was practicing righty tennis matchplay for example, I asked my partners if I could have 3 serve attempts.
Otherwise I found that I was already taking target pace off the 1st, in order to avoid 2nds, in order to avoid double faults, which was bad for everyone.
Plus overall my serves would get weaker and so less challenging for my partners.
This worked out pretty well. As the serve got better and/or the scores got closer, we went back to 2 attempts.
Don't get too hung up on the rules but make them work for you.