@Keegans-Bluff - let me know if you want me to come back on Tuesday :-)
I've just edited my response as you made a lot of the same points I was going to make!
@Martyn-B I've set a deposit limit a couple times, without going into details my current portfolio value is 21% my own deposits, this is a risk level I'm more than happy with.
In answer to the liquidity question, yes it makes it trickier and sometimes you have to miss out on a rise. It might be worth keeping a dividend / trading balance once you've hit your deposit limit. I don't do this at the moment as I usually have a good idea / plan of who I want to re-invest in.
You definitely want to be careful of 'IS'ing players to create liquidity, take a good look at margins, likelihood of being able to rebuy the player before any potential rise, etc etc. I've only ever seen one person make a complete hash of FI and that's because he kept jumping from player to player.
And if you've set a limit you want to be even more careful about breaking it, this is after all gambling and gambling is addictive! There will always be another player rising!