A few days ago I made a reference to a Clerke bullet mold I own in another discussion. The number is 323 965.
I bought the mold to see if it would perform just a wee bit better than my very, very similar Ideal 321232. I wanted to see if it might be an enhanced version of a bullet my rifle does quite well with most of the time.
Have any of the clone, copy, or whatever term you choose molds you own, been compared side-by-side with the original, and what was the result?  In my case the original was better, and I'm curious about the general run of this kind of thing.
Here, there are a few little differences, and the intent may not have been to replicate the Ideal mold, but the fact is, that it's quite similar. I wondered if the differences may have been for production reasons. Smaller meplat and shorter distance to the base from the lowest groove. Same weight and length nearly.
In other words, do very small changes make much difference in bullets for you? How do you gauge which of two (or more) similar molds would be the one to choose?

Thanks, Frank. It does cast smaller than the Ideal, but I size the Ideal to .323 to clean 'em up. The Clerke casts just over .322 and I run those through the sizer to slap off the extra lube from pan lubing. In my earlier post I missed the Clerke number- it is 323965, not 322 like I typed. (I'll edit that). 
Rifle usually doesn't care with either size. Fixed. I've breech seated the Ideal, not the Clerke, but the comparison was both fixed. 
It isn't that the one is perfect, while the other shoots shotgun patterns, but I seem to sense a difference, and would like to figure how to pick my next mold- and, it may be a "clone". 
PS- the Ideal is 321232- not the one you typed. Mine are a cylindrical pair of slugs.

Frank, what you say makes sense. I have no way to determine exact shape of the nose to see where the radii and all are, but the nose on the Ideal looks a little fatter and is .314 just above the first goove. From that point the bands are as sized. The grooves are +/- .287.
The Clerke is a bit more pointy, starting at .319 and tapering upward, first band (lower) is .322. Groove is .296 and narrow. That may explain why the skinny shaped nose is still almost the same weight? 
Overall length is within a thou. Both use a kiss on the rifling that equates to the same die setting being suitable, and I may add, easier to load I was confounded by this at first since the noses looked a scosh different to my eye. It seems that the Ideal seats on the leade inside the lube groove, while the Clerke seats just ahead of the first groove. Barrel dimensions are .315 and .321 as best I can measure. Unmodified Winchester barrel from 1889, and just about perfect. 
The Ideal has occasionally shot groups that are about 3/4, and tend to be an inch or a little above. Me, more than it being the limiting cause. The Clerke has never yet gone down to an inch. Limited number of trials. Mostly just over an inch and a quarter.
This isn't the end of the world, or a major worry. I would like to learn how to select molds with some higher likelyhood of success than just a wing and a prayer, though. Thanks for taking an interest here. Pat