So I'm planning on upgrading from my Bel v995 (M4) to a Escort RedLine or Bel Sti Magnum. My question is, in reality would I be able to tell the difference between the two of them? I understand the RedLine is slightly more sensitive since it has custom LNAs. I also understand that Escort will be releasing an update for the RedLine that will include BS & RDR which should make it a lot more I/O and Q/T capable. In addition I don't have a preference for tone alerts, but the ramp up on the Mangum is better than on the RedLine. For the longest time I have been stalling on buying the RedLine because I am waiting for Escort to release the expert software upgrade, which I predict will be in August.