I got to shoot this bow a little today at a friends house after picking up a new string. I shot everything from 340 spine to 600. The 500 with 125gr points and full length did well. First couple shots were without a bow hand glove and it smarts! Grabbed a cotton gardening glove from his garage and it was better. Until I took the glove off and had a bit of feather embedded pretty good into my finger, through the glove! Leather glove, it will be.
But the 500 spine worked very well and allowed me to focus on my form and aim than anything. Have new gold tip blem shafts in 500 spine, got some field points, just need to order feathers and build them!
The string we put on this bow is X99, no silencers. The bow is rather quiet without puff balls and shoot rather quick. No hand shock and is a pleasure to shoot! The original leather strike plate was dried out and started splitting, eventually falling off quickly. Had some fuzzy side velcro I stuck on there and called it good.
So far, loving this bow!