Protech Airsoft MK2.5 HPA Drop in Kit for Airsoft AEG Gearboxes (Version: Version 2)

"THIS. IS. AMAZING. This thing is seriously the best drop in unit I've used. I own a jack, I've used a wolverine, I've used a hydra, I've even tested an F1. And this is by far my favorite. I've got 1 gripe but everything else is positive. So when I first ordered the mkII I was really excited. It arrived and I was super excited to install it and get it going. But when I began testing I noticed a small leak from the top hole by the solenoid. I contacted protech who gave me a few things to try before having me ship my product back to them. I ended up shipping it back and having it fixed. Not only did they ship my working product back, but they also shipped a sample of their "proloob" that they are currently in the making of. So onto the pros and cons now.
Pros:
Aluminum nozzle
Drop in install
Cheaper than other drop in units
AIR EFFICIENT AF
Easy to maintain
Quiet
Low Dc(dP on p*) apposed to a very high dP on a jack
50RPS max to keep speedsofters to a more reasonable limit

Cons:
My first one was defective