OK, so I just checked the web and UPS has delivered my new center - a Polk RM8C. So when I get home, I'm gonna go to work on my next upgrade. Question is, I was just reading about timbre-matching and how important that is for the front 3 speakers. Now, I have 25 year-old ADS L570s for the fronts which are great speakers and are in great condition and I'm using Polk R150s for the surrounds. Now for the puzzler (for me), should I use the Polk R150s for the fronts and put the behemoth L570s in the surround position. Would that more accurately match my front 3 speakers and give me more accurate sound? Thanks for any insight.
P.S. I'm planning on upgrading my fronts to Polk VM20s (maybe around stimulus check and tax time

) so the L570s are going bye-bye eventually.