left/ right leg imbalance

6% difference is probably outside the norm, but not by far. There's no harm in working to even it up, just do the same things with both legs. As Boatsie suggests, skippin is good. It' dynamic balance which works all aspects of core and posterior chain etc. Cyclists' weaknesses are generally from poor core and posterior chain (lower back, ham strings, ITB) so exercises that concentrate on these will tend to even things out. Making sure both shoes are in the same position (fore and aft) will also have a difference on how much power you transfer.

Arse burgers.
Gotta chunky hard knot right buttocks years.
Butt evened things out.
Broken left ankle twice.
Broken left leg twice.
Broken back playing throws with a gf; dead bitch now. Loved her.
Goat track your voyage bro. Less energy; more efficient .
Enjoyment the key.
I found skip rope fun. A few minutes here and there. If balance of concern; close your eyes.
Best luck bro
Turbos read like fun. Shut your eyes?
Looking at using a wreck to peddle an alternator soon; house battery to power lights/fridge. Removes a bill plus no eyes is during a safe peddle.

Bear in mind that PM’s have are accurate to generally within 2% so factor that in. You should expect a small imbalance, usually based on which leg you use to clip in. In my expereince best way to strengthen the legs individually is single leg intervals- get on a turbo and unclip one leg, do an interval of your choice and go back to the other leg; then repeat. Doing the same intervals with both should even them out somewhat over time.