At the moment, no. This plugin will evenly distribute the number of tweets displayed. For example, if 10 is selected - user1 will show 5 tweets and user2 will show 5 tweets. If 9 is selected - user1 will show 4 tweets and user2 will show 4 tweets. Contact Mike@MikesPickzWS.com to request this.
Please upgrade to Version 3.0 due to Twitter API changes.