NO! boosters do not work. The soundclick system just does not count plays as a whole, at least for the charts.. Unique plays from different listeners on a DAILY basis is the only way you will on move up the charts ... It tracks the IP number from that listener which in turns counts towards 1 unique play. So one day you could have 1,000 plays, but if only 400 people actually listen to your music/beats. soundclick will only count those 400 unique plays towards the charts that day.
You got to be really desperate or really lazy not to work on promoting yourself... SMH. If you do it the right way, It's actually rewarding because you'll get true followers, not somebody just looking for the "top ten" producers.