Joel has some good "secrets" realy like the wood sealer one.
for knocking back your finish from gloss to satin I would first try some 0000 steel wool and if that doesen't work a light buffing with grey scotch bright will work , I resort to sanding las especialy with a block as yu can easly get thin spots or ven make it though the finish.
You shoulden't need to "refinish" or resael the stock as you shoulden't be going through the first finish just scuffing it up a bit.
You could always strip the stock back completely and but on a good oil finish or satin finish. I was just screwing around with some rattle can stuff from wally world and found that it worked realy well and ended up finishing my A5-L with that in a satin finish , it worked very well but you must take your time and use the proper steps between coats.