My RE had advised me that success rates do not increase or decrease whether you have one or two transferred back. How this works exactly I have to say I dont understand. But he swears to me its true....

Keep in mind stats are just stats. I havent had a single emby stick yet (fresh or thaw), however every one of them they have always thawed brilliantly. I have had single ones put back and two put back, as well. So you just never know.

I always think I would be tempted to give any remaining ones a go. I remember someone very special on BB once said "We leave no soldiers behind" and I guess thats how I would be thinking - but then I dont have any children yet so I guess it is much harder when you already have two beautiful boys...