I ran the benchmark tests from the page on this forum here. and got some odd results.
The 33S program fitted to the 35S ran very slow, about 471 seconds on my stopwatch. I read there is probably some internal work because of the vector math function added. It might add some overhead. OK I can accept this, it makes sense to me.
Then for grins I converted the 41/42 program to the 35S. 323 seconds. Slow but not as slow!?! I dug out the 33S and it runs it's test in 129 seconds. All to my stop watch and skills.
From the chart on the forum page, there are the following times:
42S 425 sec.
32S 262 sec.
32SII 344 sec.
And my timer:
33S 129 sec.
35S/33S 417 sec.
35S/42S 323 sec.
Next is to put the 42S version on the 33S. I'm guessing it should be faster if it fits.