You are right about the Alleva being as a Fender on steroids.
Foderas are great! Handmade works of art..
Little story.... I had one back in the mid 80s when they were not so expensive...

You could get one for Under 2k used.
But i lost favor with it for some of the gigs i was doing at the time.. Then i started on the quest for the perfect Rock 5 string.. I wound up loosing Thousands $$$ on that quest!
At one time i had 27 five string basses... A little impractical!
Pedullas, Spectors 'one of their 1st 5s" , Alembics, Laklands, Fodera, Yamahas BBs and TRBs, prototyped Steinbergers, Peaveys, Music man, More Alembics, Tobias, Zons, Modulus, geeeshhhh...
I had road cases full of basses in my Brooklyn Loft...
One day I said, Damn, all these things have batteries that need to be replaced.

Then my friend Hugh (who is a Sadowsky player) suggested that i try a Sadowsky.. I did, and i bought one..Thank you! The quest was almost over. (Funny, I found the receipt for that bass about a month ago, I paid $1995 for a NYC. They werent called a NYC then , because all of his basses were NYCs in 1993-'94)
Then i met Jimmy who sold me a Tobias bass when he worked at Rudys Music on 48th St... He said,, Sell all that crap and get a couple of old fenders! He was right... And i did.. And the engineers loved them. And i sold off all my other stuff at a HUGE loss... Oh well!
Sadly those pre CBS fenders were stolen a few years ago..
I think I came full circle about 20 years ago, going back to Fender style with the Sadowsky.
Then I got the Alleva stuff about 10 years ago when JImmy was only doing one off basses after making guitars for Nile Rogers and India Arie etc.. The original bass he made fro me was a gift to replace some of those old fenders that were stolen.. I then realized, they're are as good as the old Pre CBS Fenders..
It took a lot of arm twisting. But he finally did the P4 then the P5.
Never looked back, and I dont miss any of those old basses. EXCEPT that old Spector 5... That was a rock machine!
These passive Allevas always get the thumbs up... And has the best B of any 5 i have owned and its 34" too..