Here's the latest on my three TRE folders: G-10, TI and CF.
The Orange G-10 is still the original I ordered direct from LionSteel. It has a satin blade finish and flips the best of any TRE I have. Pretty smooth too. The only issue was that after a while the pivot would come loose with side-to-side blade play and so eventually I applied blue loctite and it's all good now. It took a lot of flips for the pivot to come loose.
The TI Blue was also a direct order from LionSteel with a satin blade. The detent was weak on that one. Sent it back and the new one has much better flipper action but not as good as the G-10 model. The new one came with a stonewashed blade which does not look great and had about a half centimeter square scratch on it. The pivot did also come loose with the side-to-side blade play but fixed it with blue loctite. The TI is my smoothest model. However, the detent is still on the weak side compared to the G-10 model. I can actually open it four ways: flipper, thumb disc, pinching on the blade and inertia by just flicking it upside down. It opens very well with the thumb disc so I guess it's a good compromise.
The CF is the roughest one so far. The original also had a weak detent and was sent back for a new one. It also has that dirty stonewashed blade finish. The detent is similar to my TI Blue above but not as smooth. I may make this a thumb disc only. I really like the ergos of the little thumb disc. The CF also needed loctite for the pivot.
With the TRE loctiting you have to do it so that the blade is centered, no side-to-side blade play and good flipper action.
My G-10 has the best detent and flips very good. The TI is the smoothest and flips good. The CF flips the worst and is not smooth. I can open the TI & CF via inertia alone. Not so with the G-10. Wish all had the same detent as the G-10. Personally, it still would not suffer from thumb disc opening.
Also, I prefer the LionSteel satin finish over their dirty stonewash.
I'm happy with my G-10 & TI. Not so much with the CF. Not worth the price.