You can find new IC in kits with more relaxed timings too but there is no guarantee what will you get.
Is there a way to know them by specific series numbers, heatsinks, timings (e.g. pure 16 vs 16-18-etc.) or otherwise, or is it pure lottery? (I do know that F4-3200C16D-16GTZ is double-side.)
Also, is the IC somewhat likely to be better in TridentZ than Ripjaws when frequency, timings and price are all the same (specifically: 3200C15D-16GTZ, F4-3200C15D-16GVK (exact same price as F4-3000C14D-16GVK)), given that TridentZ is theoretically the higher line, or is it literally just the same old bag of chips they're drawing from and putting different heatsinks on?
Edit: I've eventually managed to find this: F4-3200C15D-16GVR (3200, full 15) at a manageable price, basically $17 above the 3200/16 and $33 below the 3200/14. This is still going to have the better IC, right, not just a higher chance of it?