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when I first started only last June, I only used a small Crown Barbers hone for touch ups for the first several months about, this may be a better option for you also as they are small & portable, ...

I think you are heading in the right path there,
My nephew (30) shaves once a week sometimes twice he has used 1 srt8 exclusively since December, 8 months nearly with nothing but steady stropping on...

Personally for a pure touch up, a 12k or pasted strop should do for a fair while,
For a bit more tugging blade I would drop down to a 8k maybe
Any lower and your talking a rehone not a touch up ...