I'll have to disagree on this again.. Yes the V Force has a bit more surface area.. but they are also known to suck reeds out of position. (They are not screwed to the reed block like the Rad Valves)
The V force is also a 2 piece unit (the block and intake) extra o ring/gaskets more room for failure (DNF)
We have done tons of testing on Jeremys YZ 250's with Boyesen and V Force. No more V Force.
KTM does thorough testing, for them to switch to Boyesen there was a good reason and it's not cost savings.
Vforce 2's are where its all at.
Single piece manufacturing
Properly fastened reeds
all the issues you mentioned there werent a problem on the 2's
Thats why a few of us have a decent Vforce2 stockpile!
but in saying that I've used 3's and NEVER had an issue