I dislike double elimination; the grand final is reduced to an anticlimactic matchup depending on the ruleset for the playoffs, (ie if it's a carried result or 2 separate boX's)
Usually in some leagues you carry the result over of the previous match, if the 2 teams faced each other in the WB. This includes games leading up to the LB final, but this implies the games in the earlier rounds are best of 3's and the next time you meet it becomes a best of 5, with the prev result carried.
e.g. 3t beats rawk 2-0 in maps in QF, 3t loses SF to TC 2-1
3t play rawk in LB SF and only need to win 1 map to go 3-0, or rawk need to win 3 in a row.
3t play TC in grand final and start 2-1 down, TC only needs 2 maps (implying bo7) and 3t need to win 3. (It's nearly like a bo5)
You could have the prev rounds be bo5 and the rematches become bo7's.
If you are in the LB and you face a guy you haven't played yet in the WB, you don't carry a result and it's a fresh boX.
Problem then, in the GF, you can play a guy you avoided in the WB from early elimination, do you carry the result of the game you played in the WB and lost? (to a different clan). Seems a bit lame imo in that scenario, as you may have already played your "rematch" with the result carried forward in a previous LB game.
But then you can't expect the grand final winner to go out in 3 maps, what advantage do you award him then?
Might be wrong on a few points but thats the general gist.
Alternatively; which I guess you are doing:
You have every round be bo5 and you ignore previous results:
Clan A v B, A wins 3-0. A v C, A loses 2-3.
LB; A v B, B wins 3-2.
"A" took 5 maps vs B, and loses overall, while it is "5-3" to A.
B faces C in grand final; not having met each other previously. Hope your with me still.
B wins 3-2, then again 3-2. 6-4 total to B, while C only needed 3 maps to win overall whilst winning 4 in total. Seems a little odd, but possible.
nb; qf/sf=quarter/semifinal, boX=best of #