Hi,
I think all the best about the Demka sperguns. I own two and both are super out of the box...
The materials and ideas are great. The factory setup rocks for the med species (17.5 bands and 6.25 unbreakable shaft). Great for shallow water ambush and pin point accuracy.
For me, that's the best setup for light alu guns - which target small fast fish.
The guns are simple, robust, quiet and accurate.
With most other guns you get some fancy design which lacks quality and has strange band/shaft set-ups...
This line relase 'problem' is probably conected to the strong mechanism which holds for many years...With the bungie cord, you can avoid any unnecessary problems...
In the flood of euro alu-guns (omer, cressi, beuchat, imersion, picaso, seac sub, sporasub....) they make a good alternative...