I wouldn't go any lighter but, it will work fine if you put it right in the wheelhouse. Accuracy and sharp matter most. I have kilt (catched) 6 elk with trad gear. 2 with 200g WW, 613g 32" Beeman Classics 50lb limbs, 56lbs to me (Must be pretty close to your setup). Then switched to 61lb limbs. One with a 770g FMJ with an Abowyer Wapiti. 2 with 560 grain FMJ with Zwickey Eskimos 175g up front. 1 with 620g cedar with a 125g Eclipse. Pass thru on one WW, (other WW 26" of penetration). Zwickeys and the Eclipse all pass throughs. Least penetration on the Abowyer, don't know if it was the angle, where I hit him (through the leg), the fact that he was a big bull, it's a thick broadhead or all of the above. My advice would be: SHARP, ACCURATE, UPHILL, CLOSE TO THE ROAD. Get your wife a good frame pack! Good Luck and have fun!