Worn VF 3 for SCSM 2024. Felt it doesn't have that VF2 rebound. It's a more stable shoes, less harsh, so wearing for long duration was a better experience. Though I PB for SCSM, and I think it a decent fast shoe, but it's not as fast as VF2 or flame 361. For 4 hour marathon it's a good shoes as it very forgiving. But if you want a PB shoes, there are better shoes that perform like the VF2. I say the Flame 361 has the geometry and rebound for pace faster than 5:10 which was my income eco pace. Any slower I think it's less forgiving shoe on your legs. So chances are I may not use flame 361 for SCSM, as target speed at a slower 5:40. Flame 361 may not feel right such pace or duration.
In a chinese reviewer context, VF 3 is like a 3:30 - 4:30 全民碳板跑鞋. Can't go wrong but there are better shoes if you are a faster runner. where else the VF 2 or Flame 361 are a level higher, less forgiving to slower runner.
But training SCSM, I will try the 361 flame 4 for LSD to see if my legs can adapt to slow pace in that shoes.