The Dovo Bismarck vs. The Jospeh Allen Non-XL

Both 6/8, both full hollow, both shave ready....pretty much same stats.

Here's the trick. The JA consistently outperforms my Dovo despite having all of the same sharpness etc. The JA will give a smoother shave day after day while the Dovo is not dull, does not pull, and is properly honed but consistently gives me an uncomfortable shave. It's not that it pulls, but it seems that it gives me razor burn MUCH quicker than the JA. Another thing I've noticed is that despite both the razors being full hollow, the Dovo sings higher than the JA which has a bit more bass in it's ring.

So...the question is, why does the JA give a more comfortable shave than the Dovo?