Well, just surprised myself - dug out my reels and the kitchen scales:
Danica compo 69 (7/8) with spool - 140g.
Grey's GTX No 3 (7/8) with spool - 212g.
Scierra XDA 5/7 - 230g.
Thus, the cheap and nasty Danica, being the lightest, is the best fit for my lighter weight rods?!?!
My impression was also that the Grey's, having a bigger circumference than the Scierra, was heavier, because "it looks heavier", but, no. However, the Scierra looks better than the other two (shiny)!!
It's the age old question of looks over functionality. And for those of you who haven't guessed yet - the Scierra XDA and the Grey's will be on their way to the for sale section in the next wee while.
I accept the weight difference may be due to the Danica having no drag and absolutely no frills, but I still like it.
And, I managed to find a good deal on a new 5/7 reel with spools that weighs only 15g more than the Danica, has drag and is metal - which can be used with my lighter weight rods.