Not sure what you are asking, but if it sounds like you plan to just use the front trigger when hunting because you don't want to set the rear and then use the front in the set position...So, you want the front trigger to be easier to pull when the rear isn't set???
If that is the question then the takeup sounds normal for these double set triggers...To make it lighter involves taking the lock apart and honing the sear and tumbler which I don't recommend if you don't have experience in these things...Even doing so won't reduce the trigger pull that much...To drop the hammer, you have to have a heavy mainspring, that's just the nature of the beast...
Now, the good news...I have hunted with flintlocks since 1977, both a .40 for small game and a .54 for deer...Both of these rifles have set triggers...I set the trigger 90% of the time when I take a shot...With the .40 it may even run 100% of the time because with squirrels, I only take head shots...When deer hunting if a deer slips in without me hearing it and is fairly close I don't set the triggers...Other than that, I do...
My advise is to use the gun enough so that you get use to setting the rear and using the front as it was intended to use...You can adjust it so it's not too light so work on that...If wearing gloves, get some of the rag wool ones with the fingers cut out...Hope this helps...Enjoy!!
