mag. which rocker arm assys to get?

New EQ bare heads (EEQAW in las vegas). The local dealer will sell me the individual sets (2 rockers/2 bolts/2 pivots/1guide) for $11.04 (X eight). I'm worried that this stuff might go NS1 if I dont jump on it right now but I am also wondering if going with the chebby screw in studs/rocker etc setup would be a better way to go. I have these MP ones on a current mag head setup & the wipe pattern dont seem quite right but I ain't sure on that. high rpm circle track app. Your thoughts please/ which way should i go? Thank you for your time.