I do not own a Edgun, but they look nice. To me it seems like you have to remove the stock to adjust hammer spring? I do own a taipan vet in .177. Since I like to tune, and try out differnt speeds with different pellets, I like the easy acces to the hammer spring adjuster on the taipan. I prefer to shoot normally on the bench trough the chrony, so I can see the speed, and grouping at the same time. If you have to remove the stock on the edgun, to adjust hammer spring, the tuning prosses gets a litle more cumbersome, as you can not chrony, and check for accuracy at the same time. It is probably not an issue if you like to leave the gun where it is. But if you like to change or try differnet settings often, the taipan seems to have an advantage there. But on the other hand, forward cocking, like on the edgun is also nice to have. Best option would probably be to test both, and simply see which one you like the most.