Review/Revise Engine of the Month Submission Rules?

Recently we had an engine that was last year's pick of the draw, successfully garnering the prized @EXModelEngines Black Lynx engine, again be re-entered for another chance.

I wouldn't want to discourage engine submission, so the contest can be successful. However, lately, I have noticed that we've achieved the 10 engine minimum sometimes as short as 1 or 2 days after Jacob announces submissions for the month are open. Since Matt also graciously and freely supplies the prized engines, it would be good if he could also help guide.

May I suggest a revision to the rules, so that others may get a fair shot of being a Cox of the month winner, along with also a shot at the semi-annual prized Black Lynx that Matt so graciously provides?

1. Once an engine wins the Engine of the Month Contest, it must be retired from further contests for say, a two year waiting period.

2. Once an engine is successfully selected for Engine of the Month candidate but not a winner, it must wait another 2 months before re-entering. This will help prevent seeing the same engine consecutively, and give a chance for another to be a candidate, as well as allow others to submit competing engines.

3. Once an engine wins the pick of the draw for the Black Lynx engine, it must be retired completely.

I wouldn't want to see the enthusiasm for this contest to be dampened, but also foster others to submit their engines as well.

Thoughts? May be I am over-reacting and status quo (no rule changes) is acceptable? Slightly dampen what I mentioned in brain storming? Or, any better ideas?