I wanted to save those slots for leveling but me vs. Mew is almost over. I will say I am not fighting your ridiculous Sigs though, so I'm happy to do it in Sigless or to wait until Sigs are officially wiped.
I left some notes in the match against Jeri before it can progress. Please understand that this being an important match to you, it would be best if you modify the sig in a way that gives you a slight advantage instead of the sig setting up a win condition. I understand the rules were mucky around sigs when you joined, but some of your sigs are giving you too many things at once which easily makes them broken. You are holding your own, so don't look at this as a huge drawback, whatever you pick will still be of a benefit long term.