PS A final word is that I'd expect Tiger to shorten by the off, perhaps go off at 2.32/2.34.
The reason being is that the bookies are all sitting at 5/4, the reason being that they don't have to push him out to take bets on him given that its the Masters and its Tiger - the 4 times a year high street golf punters will be throwing their £20 at him in droves. I'd expect(just my theory mind) that the bookies will manage some of their liability on
betfair before the off where they can currently have all they like at 2.44 and guarantee themselves some healthy profit already.
There's also the back to lay punters to factor in who always turn up when Tiger is out early on day 1(as he is on Thursday) - those that somehow correlate him having an early start to him being guaranteed to shorten right away.
So if you can be bothered, and fancy a nice little start to the Masters, a little back and lay play before the off looks decent - and if it doesnt happen I really can't see Tiger getting any longer than 2.46 so its plenty cheap enough to get out.