there' s a way to remove that first stage of the trigger at almost no cost.....I' ve used a empty .22 rim fire case, flattened it with a hammer and fold it once in the middle creating four layers of brass and use it as a shim on the foreward side of the trigger where the normal stop occurrs. You must remove the barreled action from the stock to do this. Try the shim...if it removes the travel you dislike, epoxy it in place. There' s no pressure on this shim and epoxy will hold it nicely.

It' s not at all difficult or expensive to replace the entire trigger with a Timney. It' s a fine replacement trigger. But there' s ways to make the original trigger work well too. It' s also possible to drill and tap a screw hole in the trigger to allow a screw adjustment where I said to shim. This takes out the pretravel and actually can be used to remove a little creep.....be careful !!