the forum seems to be tits up at mo, so having to use my missus's screen name to get on,
not having used any other semi before, I dont find the button to be an inconvinience, but can understand if the pidgeons were coming in quick, it may hamper loading a little, but seems they have now brought out a mk2 version that deals with that, the button has been removed and is now located on the bottom loading tray, so the cartridge pushes the button in, as your loading the gun, or you flick it when loading one in the barrel
stubby