Karmageddon

I'm new here (first post, from a search on 'repeat chance'), and I hardly play any machines except for the ''Carribean Cash' in the local cafe. I find I enjoy playing the games as much as the 'gambling' side of it, so maybe loading up on some emulated games might save me a few quid!

Anyway , I got my first jackpot today, £35, from a hi-lo thing on invincible that added to the pot til it hit £35. As ever, I got repeat chance, and ..no. Made me think, I've had dozens of repeat chance options, they've probably had 4 or 5 machines in the cafe since I started going in there, and I don't remember EVER winning a repeat chance, unless it was a 'skill' one.

Is this a common occurence, repeat chance being almost worthless? Or am I on a dodgy machine? (dodgy string of machines, I guess, tho it did pay out, 35 today and 6,7, and 17 yesterday. I only went in today to spend some of my winnings on breakfast!)