Upper_Krust
Legend
Hello again mate! 
In summary...
My analysis of fractional CR may indeed be misleading (I'm still looking into it, although the divisions from 0+ appear to work); I'll know in future about posting stuff before I have double checked it.
We may indeed have to run with halving instead of quartering below 1. Which would make the Small Zombie CR 1/5 and the Giant Fire Beetle CR 1/4. It would also make the Medium Zombie 1/3.
Poison does appear to be rated fairly high, maybe its effects should be halved (I'll check)? Though I currently rate the Tiny Viper at CR 1.375 (1.25) = EL 2; not EL 3.

Anubis said:Okay, after many hours of study, I not only pinpointed the problems with UK's proposal, I also found a steady formula to determine fractional CRs!
Here it goes . . . We know CR 1 = EL 1. Well, I propose that we set half that (CR 0.5) to equal the EL 2/3. Starting from that point, I made a variation of the original formula as the basis for mine. After 1, the formula that UK uses goes CR*2 = EL+4. This obviously don't work below 1, however, because then you could never take into account negative CRs. Instead, you have to reverse the formula! It goes like so, *for CRs below 1*:
CR-2 = EL/4
Bam! With that, you get the following:
CR - EL
===================
-3 = 1/16
-2.5 = 1/12
-2 = 1/8
-1.5 = 1/6
-1 = 1/4
-0.5 = 1/3
0 = 1/2
0.5 = 2/3
1 = 1
UK's proposal has no mathematical basis, whereas my proposal is based off of the very formula that works his entire system! I think this is certain proof that I have the right idea here.
Now as for the following proposal:
CR - EL
===================
1 = 1
1.25 = 2
1.50 = 3
1.75 = 4
2 = 5
2.50 = 6
3 = 7
3.50 = 8
4 = 9
The base problem with this is in pathetic creatures with unbalanced powers. In this, the tiny viper works out to be EL 3, ridiculous by any DM's imagination considering the whopping 1 hp. Also, gnolls work out to be EL 2, which although I find that to be slightly stupid, it's not quite as unbalanced as the timy viper. On that note, there are only three solutions:
1) Reduce the CR value of poison.
2) Forget about diving up ELs 1-4.
3) Have a poison parameter that limits the poison power of smaller creatures, which kills the realism of the viper.
Take your pick, 'cause it currently don't work at all. Anyway, that's my report. Those using the system are urged to use THIS formula and not UK's, as UK's will cause problems with the fractional monsters.
In summary...
My analysis of fractional CR may indeed be misleading (I'm still looking into it, although the divisions from 0+ appear to work); I'll know in future about posting stuff before I have double checked it.
We may indeed have to run with halving instead of quartering below 1. Which would make the Small Zombie CR 1/5 and the Giant Fire Beetle CR 1/4. It would also make the Medium Zombie 1/3.
Poison does appear to be rated fairly high, maybe its effects should be halved (I'll check)? Though I currently rate the Tiny Viper at CR 1.375 (1.25) = EL 2; not EL 3.