OK, I shoot a 62# longbow or recurve right now. I shoot GT's 55/75 with 175gr points with 70gr of added weight, all up front. Total wt. 545gr. I've read a few of the heavy arrow articles and I was thinking of adding another 60gr. If I added 30 more up front and 30 more at the tail would I likely keep the spine roughly the same? These arrows fly great right now and I am fortunate that I can shoot the same arrow out of both bows. I have also gotten complete passthroughs on bears, hogs, deer etc. BUT these articles are getting to me. Would fishing line or something else work better? (I have a dozen with Wensels but I am about to order more).