Which Kubicki model are you considering?
The headless ExFactor most likely? If so...yes, VERY FAST, comfortable neck. Like a sleeked down C neck. Be aware that all of the ones with the Drop D feature are medium (32 inch) scale. If you need a 34 inch scale they are the very hard to find non-D ones. The pre and post Fender ones are 18 volt, better electronics and more meticulously built...but the Fender ones are still decent and you can upgrade the 9volt electronics if you need to.
The Key Factors....with the tuners on the same thin looking headstock are all long scale 34 inch. Also very nice basses...plus they come in both 4- and 5-string models. All were made by Phil, never Fender.
All work OK with your amp. They had a rotary 6 position tone pot (5 on Fender CS) that had both active and passive presets...that you could tweak with separate stacked treble/bass knob.
As Stated above there have been a few questionable "counterfeit" ExFactors. Those seemed to be some stamped with early SN#s onto later bodies that lacked the earlier dogear electronics cavities/covers......most likely made from discarded FCS parts when Phil took back production.
But very ergonomic, comfortable FAST basses. Besides normal playing, they also lend themselves well to slap style. Also nice....you can use regular bass strings on them and NOT double ball end ones like Steinbergers need.
