Preamp upgrade - Shindo or VAC?

I’ve had a VAC Standard LE pre amp for a few years now with Auricle Musicblocs. I’ve liked them a lot. However as I had my preamp gone for some maintenance, I had a friends Shindo Aurieges on loan. I must say I was quite impressed. Don’t actually know if it’s better than the Standard LE, but at least it seems to fit my system quite nicelly. The instruments and voices were more real and vibrant. Then again some seem to think VAC’s better pre amps are a lot better that the Standard LE(?)

So I’m wondering about an upgrade path… VAC or Shindo? Anyone out there with experience with say Shindo Mondrison or Masseto and the VAC Renaissance MKIII Preamplifier?

I’d be grateful for any insite. =)