Those Safaris will be too stiff. Make sure you are doing a few things to speed up the efficiency of your bow and begin with testing the arrow at full length with ALL that weight up front...
1. Use a FF string or (even better) get TS+ or faster material made thin (10 strands) and double served for the arrow. This can add up to 15 or more fps and 10-15 lbs to your bow!! It goes without saying that ONLY DO THIS IF YOUR BOW HAS RE-ENFORCED TIPS OR YOU WILL BREAK YOUR BOW.
2. Use qivuit musk ox silencers. These are the fastest and will not suck up any fps on your string
3. Lower your brace height as low as you can without compromising accuracy
4. AND you can try this... I wanted a faster arrow, so I compromised by developing a new anchor point that allowed me to overdraw by an inch on my bow. I now anchor my pointer finger on my check bone and use the position of my scapulas as a secondary anchor. Every inch adds a few pounds and a few fps. This allows me to use a stiffer and heavier arrow... it took a couple of months to relearn my technique, but it does work... you can try it if you like : )
I think if you pull every inch of speed and power out of your bow, shoot the arrows at full length, and put a lot of weight up front, you can make them work for you. Good luck!!