From my own personal experiences, I'd recommend the KB board to anyone wanting to upgrade.....The KB offering is by far a superior board, however, you would need the appropriate horsepower resistor to avoid overloading your motor...
Not knowing your level of expertise, you would be best reading thru the KB literature and setup procedure prior to engaging in any expense, just to familiarise your self with what is involved.....and then deciding....
A new KB board will run you around £85, it pays to shop around...second hand ones are available from time to time at reasonable prices....
( if you're interested in a s/h board pm me.

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