am currently running an Elite Rock MK2/OL Encounter 3C combo. However for the last few days I have been looking longingly at the Michel Orbe in the classifieds.

The one thing I need to clear up before I take my thought process any further is, would the Orbe with my Encounter 3C be a significant upgrade to my Rock, or merely a sideways move? 

I have been very lucky over the past 2 years with my seat of the pants (fook it, just do it) decisions to buy various bits of kit on a whim, each time getting a significant lift in SQ (to my ears anyway). Now, however I am at a level where genuine (lowish cost) upgrades are hard to come by so would appreciate some input from others.

There is nothing really wrong with my current TT or the SQ, but then again I thought my OL Aurora Gold MK2 was superb until I heard the Rock. So if the Orbe can provide 'more' at what I consider to be a reasonable outlay then I will investigate things further.