Layla 3G preamps vs.....

I've been using a Layla 24/96 for years with good results, but it bit the dust. I have a Layla 3G in route. Of course the Layla 24 did not have preamps and I have been using two Symetrix SX202 dual preamps. I chose them...back when my ears were good...over the Mackie VLZ pro preamps in my mixer. I thought they gave a less brittle sound A to B. They belong to my fiddle player though and I'd just as soon be self sufficient. I need some hearing endowed experts :) that may be able to give me some input. How are the Layla 3G preamps against the Mackie VLZ Pro preamps I also have available ? This bit of info would give me a starting point to go from. If by some wild chance anyone familiar with the 3G preamps and has a Symetrix that would be great. But there's not much reference to Symetrix preamps here. Here is what my signal chain has been....Mic >Symetrix> Layla 24 > Mackie control room mixer. I know a wise response would be to listen and make the comparison myself. And I will do that the best I can. But in recent years my hearing has deteriorated. While hearing probs can be dealt with from a "point of reference" way for many things, some things are just too subtle to rely on that. For example, I will ask a colleague to double check my reverb tails when mixing. So...any help you all could offer would be very much appreciated. Thanks, Gary