I constantly move between Paul Harris Cardboard Connection which I have better experiences with that the Immaculate Connection. These are both impromptu and I use them only in impromptu situations.
Sixten Beme's one card link requires a set-up that when you are used to it takes around 5-6 minutes to do at home. However, the preparation allows you to hand out the linked card for examination. Now, here is my question to those of you who performs this effect.
9 out of 10 times I can make the card so that it is almost entirely imposible to see the xxxxx. However, even a 100% made preparation will not forever hold a thorough inspection when the spectator comes hom,e to hsi kitchen table and really looks close and starts bending the card in various spots. I hand the card out for inspection and has never been caught, but I don't like giving the linked card out as a souvenir, because I believe that the spectator eventually will find the secret. On the other hand it feels awkward to take the card back and put it away. Besides that, a lot of times the spectator asks if he can keep it - and when that happens I just say yes - because a "no" will signal something secretive - but I surely don't feel good about handing it out.
I realise handing it out for keeps to 1 spectator will enhance the effect with the other 20 spectators - however I still don't like the fact that the 1 spectator now has a chance of finding the secret. And besides that - it's not my effect - so I feel I'm not entitled to give away a piece that can give away the secret.
Let me know what you are feeling and doing.