Too much guard, for my taste, with our deer up here you`ll end up using all that 4" blade and be wanting more to work on the vent....the guard will get in the way. But for the other parts of the gutting you wouldn`t want any more than 4". shorten that guard considerably and you will gain a few more inches of reach to do the vent properly...a 6" blade 3/4 to 7/8 works perfectly in that area, but not so good on the rest. just my thoughts again.