advice on sirloin tip roast

[cardiac_cadet002]

I posted this question in the "Whats cooking thread", figure it will get more hits here. I have searched the forums on sirloin tip roast and most I am finding are in the 8-12lb range. I picked up one on sale yesterday but its a 4lb. I have seen several different ways of cooking the bigger ones, will the same apply to a smaller one like I have? I am thinking maybe taking the kettle to about 250 degrees and cook till about 155 for medium well with a rest. Sound about rite?
Thanks in advance.:biggrin:

 

[boatnut]

i think if u take it to 155 and rest it will be ruined. I'd suggest 140 max then rest. you can always nuke slices in microwave for those that wanna 'em more done.