So, they were AMAZING. It was still plenty loud, infact sometimes I was thinking it was still pretty loud and how on earth did I used to listen to music at the volumes it is at when not wearing the plugs.
I took them out for a couple of favourite tracks (voicemail <3) but to be honest it was then super loud, probably because I'd gotten used to the level of sound from the plugs.
I'm still unsure whether or not to change for the pro 17's which give a flatter reduction of around 15db across the range, they're close to the old ACS ER15's from what I've read.
I'm seeing Adam Beyer in Edinburgh then Heidi in Newcastle on bank holiday weekend so I'll keep the pro 15's (12db reduction) until then and make my decision after those two events. The reason I'm still undecided as that the music still seemed loud, almost too loud at some points and the people who I was out with, who don't wear ear protection, said that the club wasn't as loud as it has been in the past. So I'm wary that if I visit some clubs where it IS too loud without protection that I might still not get enough protection with the pro 15 fiters.
I'm very, very impressed thus far though. No ringing in the ears when leaving the club (other than my small existing level of tinitus) and my ears didn't feel tired. They're very comfortable to wear, you almost forget they're in.
I actually think it makes it easier to hear people talking to me when on the dancefloor however it'll take a little more getting used to talking as a lot of people couldn't hear me, I was probably talking too quietly due to me being able to hear myself quite loudly in my head.
I took them out when I went outside for some fresh air and I felt like professor Xavier out of X-men when he uses Cerebro and he can hear all the mutant conversations
I'll report back after the bank holiday weekend when I've made the decision as to whether I'm going to go for the slightly stronger filters.