[Elecraft] K2 Rev A to Rev B Upgrade

[Ralph Perreca]

Hi All
I purchased my Elecraft K2 several months ago Ser # 1913 firmware 1.06F 1.02 with ATU And SSB options I am considering doing the Rev A to Rev B upgrade and would like some feedback as to whether it is worth doing and why as well as approx build time for a builder with average experience I have built several small kits and the Elecraft K1 
Thank you
Ralph
KD2EJR