The Hedron volume offers you a sloper crystal and five t-nut locations. The crystal could be considered a beginner sloper on vertical walls, but where this volume shines is in steeper terrain. The sloper feels in the V3 range on a 25-degree wall and V5 on a 45-degree wall.
The t-nut locations offer 2-1/2" x 2-1/2", and the area directly below the sloper is 3' x 3". You can set small footholds and crimps on these areas, so in steep terrain, getting a hold on the vertical plane adds a dimensional climbing experience for the holds on your boulder problems.
Please do not drill spinner screw holes or any other holes into Polyurethane Volumes. You can weaken the structural integrity of the product. This practice also voids our warranty.