I'm glad you asked as it was something I was going to address. It was suggested to use them dry... I agree on the leather, I disagree on the balsa. You are going to need an abrasive for your balsa. I suggest 1 micron which equates to around 13k. Anything more for you is just silly. Boron Carbide paste is great, but the diamond spray is least expensive & a top performer this. <--link
Anyhow, as is, I would finish with a stropping sequence on your Rika, and then transition to your naked leather bench strop. Once you acquire an abrasive, you would transition from the Rika, to the charged balsa strop, and then finish on the nude leather.
You can strop on nude balsa. I would not; I do not.
You can charge your leather. I do, but I always finish on nude leather. With your one leather & one balsa, I strongly recommend charging your balsa & leaving your leather nude. This is MORE THAN versatile enough to finish your sharpening, and to refresh your edges.
If/when buying additional strops, pay attention to purchase the 8" strops... not the 11".
Polishing can be done easily with the rust remover blocks <--link
. Use the 2k then 3k progression. Wet sandpaper in a similar progression works. For cheap, you can also polish the blade face with reserved stone swarf, from your 1200 & 5K, on microfiber. Bear in mind, the TKC wants to dull as a semi-stainless.