Ok, first off I have to comment on the customer service. I had a TechT L6 bolt (a discontinued precursor to the L7) and my l6 was leaking. So I called up Todd at TechT and asked if i could send it in for a repair. He said sure thing. So I sent it in and within 1 week I got a package back. Inside was a brand new L7 bolt with a note saying that they couldn't fix my L6 so they replaced it with an upgrade!!! WOW
For testing i havn't been able to use it much, just dry fired a bit to check for leaks. This thing was significantly quieter than the stock and there was no kick anymore!!! It made the gun feel soooooooooo smooth. And I was able to cycle faster than the stock.
I'm a woodsballer so I really like the quietness of this bolt.
You CAN NOT get a better bolt than this one. It is a must buy for your Ion!!!! Get it. Customer service alone makes it worth it!