Personally, I went with the EREK on both of mine, one being a Horus reticle that I rarely dial... I don't regret it, I like the low profile look, the gracious spacing of the clicks, as well as the way to center the erector and make your own "zero stop".
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: JRose</div><div class="ubbcode-body">With USO's lead time, by the time you have to render full payment, you might find yourself able to afford later what is seemingly unobtainable now. </div></div>
Unhappy? I doubt it. Esp if you go with #3's in .1mil-hard to get a turn off with them although some don't like the feel of the clicks so tight together (I like mine on my ST10).
I have an ST10 and an SN3-17X and I am a wallflower with no Erek. I did have USO zerostop my SN3's #1 turret as I have gotten a turn off with it. The GAP reticle will grow on you (and be better -god forbid- if you ever need the resale value).
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 45.308</div><div class="ubbcode-body">Trying to decide if I really need this option on ST10, budget is very tight, dropped the GAP ret for mildot too, its way too busy. </div></div> I've owned and used a SN-3 3.2-17X 44 for about 1.5 years - my scope is loaded and has both the EREK .01 MIL and GAP reticle. I wouldn't want to give up either. If money is tight save up more money and do it right the first time. By the time your scope is ready you may have saved the additional cash, and if not I'm sure John will give you a little time to pay. They'll just hold onto your scope for you for a bit longer.
Also, the GAP reticle really isn't busy at all - in use I really don't even "see" the numbers, and the hash marks actually cover less of the sight picture than the Mildots. The 1/2 MIL marks also provide more precise hold and "milling" points than the standard Mildot reticle.
In the end, after you have paid for your scope and are enjoying using it you will have forgotten about the extra cash you had to scrimp and save for.