What would happen if a guy just ran a continuos low dose cycle...like say 250 mg Test a week almost endlessly?
Some guys do that and then increase the dose and/or add other compounds (Deca, dbol, etc.). It's called cruising and blasting. In other words you cruise on 250mg of Test per week then blast for 8-10 weeks and then go back to 250mg of just Test and never come off.
With the half life would you still just keep going higher and higher as time went on?
No, I don't think so but I hear what you're saying. After a couple weeks it's completely out of your system so there isn't a continuos build up.