OK, I put a set of Evahs on my Upton Hybrid today.
I had been using UB Blacks on the E and A along with Spiro Weichs on the D and G. I had put the spiros on to get more definition and a less finger noise. Of course, along with that came the twang. I use raw guts on my other bass for slapping. I had used Eurosonics and some Hillbilly slappers too. So you get an idea where I'm coming from on these strings.
The wrap is pretty nice. They feel really nice. The windings are solid. The tension is OK. Maybe a little softer than I expected. I also noticed that my fingers were getting some black from the strings. Didn't really bother me.
Pizz:
The EPs seem quiet compared to the Spiros/Blacks. I kept the felt washers on the ends under the bridge. Don't know if that has anything to do with it, but I've never used them before. They were there, so I assumed I was supposed to. But the notes are quiet so I felt myself really pulling hard. They responded very well to that. I didn't get any weird rattle and hum from the aggressive play. The note also has a shorter sustain. Not like raw guts, but I sure didn't get the a long ringing note. I like it. It cleans up the playing a little.
The note was quiet, but also my finger noise really dropped off. I really appreciate that aspect as I am pretty sloppy. I usually get all kinds of unwanted clicky, hissy, gracky noise. There was such little of this, I had to take notice.
Arco: (Upton workshop German bow with Jade rosin)
I payed less mind to my bowing than ever. I had been getting a troubling amount of scratchy overtones with the spiros and bowing the UB Black E and A was very tough. These seemed very easy to bow. I didn't get any odd noises, I could pay attention to my left hand a bit more, which made things nice.
Plugged in:
Very focused and round tone. Not hairy with unwanted squeeks and sizzles. Just a good bump of fundamental. It was a nice musical tone.
Overall:
Can't say really at this point, but I do like them. Not quite "inspiring" yet, but they need to stretch into tension still. I can say that these strings take away so much of the extra noise, I find myself concentrating more on the the note. I'm sure that will be good for me in the end.