I have generally found that out of my particular gun, the crush ribs shoot pretty good.
That said, when I load them with a Brnes 250 TEZ, they go down the barrel pretty easy.
I was concerned that they went in too easy, but my shooting results with the Barnes TEZ, and the Hornady XTP Mags for that matter, have been good.
The yellow crush ribs for the Barnes boattail MZ's loaded a little harder, but the gun still shot them very accurately.
I did all my shooting with the PT Golds with the Crush rib and they loaded about the same as the TEZ's, fairly easy, but seemed firm enough.
For what it's worth, my cousin usually shoots with me and he has a TC Encore which shoots 1 " - 1 1/2" 3 shot groups at 100 yds using either the Hornady SST' or FTX's. In his gun the XTP's are also about the same as that.
We shot several PT's through his gun, some with crush ribs, some with Harvester black long smooth sabots and a couple with the short black sabots, and none shot very well.
I'll try a couple different set ups through my gun, but it doesn't look like it likes the PTs.
Again, the fact is, my gun shoots the Hornady 250 FTX's extremely well and they'er fairly cheap. (I usually call them SST's as they are almost exactly the same, Hornady told me the only difference was the composition of the plastic tip)
So I would be happy enough using them as my "go to" practice load shikle I work on fin tuning my hunting load, which appears to be one of the Barnes bullets and maybe the Hornady 240 XTP MAG.
I do have to say that after I bought my Optima I was "jonesing" for a "better" Bergara barrel gun or a more "upgrade" MLer (and I will likely still get one, or two or three...), but I have really come to appreciate my inexpensive little Optima.
In all honesty, I am shooting a MLer now better than I ever thought I would.
I always heard the barrels of MLers "shot in" better as they had a 100 or so rounds through them ( I must be between 120-150 rounds now). Not sure if that's still the case with the newer guns, but I have JB'ed the living snot out of my barrel and should have helped smooth it out.