That's interesting, and different from my headcanon, which is that Servamp blood doesn't really have a taste, but if a subclass drinks blood from their own prime it tastes almost comforting(?) idk if that makes sense, the biggest problem is how inefficient it is to drink compared to just a blood bag, like that one infographic of how higher in the food chain the more it needs to eat compared to those lower. It's not sustainable with only 1 subclass let alone multiple

That actually makes a ton of sense? That's far better than what I thought in my opinion wow

I really like this! It ties in nicely with why I think an Eve's blood tastes so good in the first place: It's made to be explicitly more nutritious in order to properly feed their Servamp and you explained the reason why very nicely! Servamps are the vampires on the very top of their specific food chain, the most powerful, the most magical that needs to be sustained if they want to stay in top shape.

With you saying this do you think that Tsuabki and Hugh, Servamps who partake in blood but have never had Eves (until recently for Hugh anyway) have to feed in far larger quantities than their subclass? They'd have to go out, hunt and drink at least twice as much to keep in top or stable shape. That makes sense and if you don't mind I will also be encasing this in my little vault of headcanoned servamp lore and innerworkings www

No wonder Sakuya would have nearly passed out if he tastes Mahiru's blood. One good feeding session between the two and as a subclass, he'd be able to go a lot longer without having to feed again! How neat!