We used AndyMark Performance wheels this season. We too drilled out holes to accept rivets into them instead of using the zip-tie method.
Size: 4"
Configuration: 8-Wheel Drive (long)
Speed: ~6 fps low / ~16.5 fps high
Driving Style: Higher Speed, Quick Acceleration, High Turn Speeds
Tread Durability: We used a blue tread from a different provider (don't remember from where) and had minimum to no maintenance. By IRI, we just switched out center wheels to the outside and put new tread in the middle wheels.
Performance: Worked great, no loss of performance from the wheels all season.
Future Usage: Yes, we like the durability of the wheels themselves, but we would probably continue to rivet out the wheels to accept rivets as well as use the blue tread (because it matches our team colors too

).