@Craig...
Hiya, bud. Been contemplating getting in touch with you about some wacky ideas I've had brewing (since your post in the "Rent a Beeps" thread) but have been a little preoccupied with other stuff.
I gotta say though, although I get what you're saying about the EB5 pack and its potential for a more "synthy/simulated" sound (as far as production goes) to me it's really just a good, hearty "real" bass sound. Keep in mind I'm quite a bit younger than you (no offense... it's more of a compliment because you have more experience and saw/did things I never will) and I'm also from the era where really started moving away from the brighter/thinner tones of the classic P's, J's and Rickies (the latter being the option for more "heft") to active pickups, bass humbuckers and a much fatter/rounder/upfront sound. Like electric bass before was kind of something that was "there" but in the background and the only time it REALLY poked through was with those special players who really dug into their gear to make it do so.
I think during the 80's engineers and gear builders started focusing on filling up that huge amount of room in the lower frequency ranges that previously was pretty sparsely populated. Even with bass heavy bands of the 70's (like Yes, Rush, Black Sabbath, etc) there wasn't really that "brown note" type rumble going on with all the fancy bass lines.
Of course though the process seemed to take a while and bass sounds in the 80's were pretty clinical/cold/not that great and STILL too buried in the mixes. The 90's seemed to make things better but that nice, wide low freq filling stuff usually only happened with synths... and still does (with modern pop, dance, hip hop).
But I do NOT like synth bass as a replacement for real bass to fill those freqs. It bothers me to no end.
So to me that EB5 pack fills the low end similar to what a synth would (broad low freq coverage) but has the attack and tone of a real bass/really tight live player. Also without that "active" pickup bass sound which I also find rather unnatural (but generally one of the few ways to use a real bass to fill those low freqs and still retain attack).
I do not own, nor have used, the Scarbee stuff but I'm guessing it emulates the older style bass sound(s) and probably great for classic rock, blues, etc. For me though, as a more "modern" metal/rock hound who struggles with that "perfect" bottom end (nice and fat but still punchy and present when need be through dense mixes) the EB5 really does nicely.
Since I use P-Bass to perform my own parts and that has the thinner, punchier, easily overdriven sound being able to slap on some reinforcement with a natural bottom freq saturating sound is extremely useful. On its own though the EB5 samples have held up nicely through the thickest/most chaotic material I've ever worked on.
The fact it was extremely cost effective (it was on sale for $20 and slides right into a synth I already had) made it golden for me. IDK what Scrabee or the other alternatives cost but I'm assuming WAY more.
Personally what I'd REALLY like to do is get Overloud MarkII to shove my P, the EB5 samples and/or the other samples I have (and synths) through then completely hone in on the freqs/sounds I hear in my head and reject the rest via EQing, blending, etc.
tl;dr...
EB5 has been, and likely will continue to be, very useful for my "pseudo" realistic bass adventures.
Cheers and thanks.