@Trofo I've never tried for anything more than 40/1... but 500/1? You ever hit one of those? I'm actually looking at my betting performance this season and after over 7 months, it appears I'm hugely in profit from single longshot bets... and about 20% down from my usual parlay tactics.
Actually I did, granted only few times in about 10 years of almost daily betting. I'll just put up some extreme examples which will stay in my memory forever.
First I have to explain how I go about choosing my pairs and stake for the tickets. I start by browsing trough all the all available games from sports I like to bet on (mostly soccer & tennis) on a given day. That usually ends up with about 10-15 games on which I bet minimum stake (usually less then 1 EUR). This selection is based entirely on the feeling. After that I immediately eliminate few games and start looking trough statistics and other info like line ups for the remainder. Usually 6 games survive this selection. It has to be 6 games because I get much better odds when playing 6 games in local betting site. On this, I bet small stake of about 5-10 EUR. In the last step I chose one single bet or double in which I have most faith and bet large amount of money on it. Depending on my feeling of that given ticket and current financial situation this bet could be anything from 50-1000 EUR. Odds are always between 1.7-3.
I keep statistics only for the high stake bets and i usually manage to end years with small but satisfying profit. I have managed to win tickets from first selection few times in my life and they were greatly celebrated. First time was when I just started to bet online and I don't remember exact odds but I won all three tickets and got more than 3000EUR on stake of about 100EUR. With the way I manage bets that means that ticket with biggest odds was probably 0.5-1 EUR for win of about 2500EUR.
One time, I missed one game to win ticket with odds of 64000. Meaning for 1 EUR I would receive 64000EUR. That one I have kept stashed somewhere. Too make matters worse that game had odds of 1.4 and they missed 2 penalties. I had guessed correctly several games with odds of more then 5 on same ticket.
Sorry for a bit of a rant. Hopefully I managed to explain things properly and not confuse you guys too much.