Excellent grid.

👎🏻

“Connect” group should be such that the word “connect” is added in the same place for all of them. It doesn’t work to have it added as a separate word before some, a separate word after others, and as part of the same word in still others. (Plus “Ion” is capitalized, so it doesn’t work that way.)
The counting group is also a little wonky, since you’re not adding the same thing to each member.

I can't believe I got the consecutive number clue but missed the jimmys. Well done!

Tricky for non-US people plus a couple of tenuous links as has already been mentioned. Not great.