The system is in need of a unit between the BTC and satoshi.
1000 sat = 1k sat = 1 ksat
Problem solved.

There is absolutely
no need for 100-satoshi-sized units. 1000-satoshi-sized units (i.e. "ksat") are much more intuitive anyway.

If you are willing to use a 1 kSat you may
keep using 10 u
BTC. Have you heard about
Occam's Razor lately?

The meaning of "k" is already understood by common people:
http://btc1k.comThe SI prefix "µ" (micro) in contrast, is a very nerdy, technical expression. It implies being something very small (as in "
microscope"), and thus is subconsciously disliked by many people.
As a matter of fact, the human brain prefers to use multiples (like "k"), rather than fractions (like "µ").
I never used µ
BTC for precisely that reason, thus "keep using" is wrong wording anyway.
Occam's razor: "
What is easier: Teaching the meaning of "µ" to common people, or using "k" instead, which is already understood by them?"