300 is a standard low dose for hanging round with people at a party in the city for example.Makes you feel happy and enjoy the music,etc..
500 is more intense but not that much, i would like to do this by nature in a "pure" environment.Now you are high.
700 is quite stronger but manageable, never the less you are now tripping.Do it by nature,day time,nice companies.
From this stage on Swim does not have experience, I believe that going to 1000 would be more visual but still nothing to loose control or worry about.The point is that Swim does not need more in this phase of his learning.Too much energy is used.Try 500 in a nice environment, nothing to worry and a step up in the ladder of perception.
im just a blue reindeer, dont listen to me, listen to her:
http://www.youtube.com/watch?v=Y6ABIkH7m0s