i need to sight in my 30 and 40 yards pins and i have a guy that lets me hunt his land and is going to help me sight it in . I have 3 arrows out of the original dozen i bought good for hunting . The others have the fletches either torn off or have just fallen off .

I do not wont to destroy my last three and thought i might go buy some new arrows i need some bigger arrow anyway i am shooting 200 gr with my bow at 68 pounds and think i should go up to a 300 or so

i have quick spin fletches and 200 gr arrows

if i go up to a 300 gr with regular fletches
is this going to put me off when i go to shoot my 200 gr arrows with the quick spin fletches for hunting

and if i go to the 300 gr arrows for hunting and target is my already set with the quick spin arrow going to be off

and any tips for sighting in a truglo 3 pins sight where to i start at to set it before shooting then i shoot and correct