@bebabass
None of my Cirrus are 5 strings,my experience is limited to 4 strings.
Your BXP could be closer to the USA than you think.l. Some of the early BXPs hit the mark straight off (later 4 strings switched from 35" to 34") and truth be told there's very little USA about the USA Cirrus
Tuners were Japanese, nut from Canada,ABM bridge from Germany, VFL pickups were made in Korea. The PCB for the preamp was also made in Korea and I have my doubts the labour intensive work of soldering components was done in the USA.The BXP used Korean and Chinese parts.
Main difference between USA and BXP is the hardware and a swap to a preamp module from the pcb. You can buy an ABM bridge direct for £80,don't bother with the tuners unless they're faulty. Most BXPs however also had gloss finish to both neck and body, green scotch pad to the neck will sort that.
The Millennium preamp has sweepable mids and started appearing on Cirrus customs and USA bolt-on neck models. Something like 2006 sticks in my mind,by then the "New Millennium" celebrations were long gone,sales were dropping and Peavey discovered they had 1000's of these preamps left I'll confess to never paying much attention to the Millennium preamp, both my custom and bolt on have them but something like a £30 grapic EQ pedal will give you more options.
Except for the glossy finish and 34" scale my BXP and 3 USA models all sound very alike.