...so i went ahead and did the 'unthinkable' and put 2 each under the TA RefXL MM2 network boxes...and then eventually 3 under each network box. Definitively better, clearer, etc...everything people here have pretty much been saying. I would say it is not equivalent to an upgrade of 1 level up on TA, but it is noticeably better.
yeah...kinda (*but only kinda*!)...i have come across some 2nd hand HRS platforms today, so may pick those up for a good price, and then keep these under the network boxes!! What a nice bit of timing, eh?