Kalsu, you said opinion so here goes. You say you have a ESEE 4, well the blade length on those is 4.5". Compared to the R5 which is (or at least mine is) 5.5625". ***Now opinion, I don't feel that the R5 will make that much difference regarding a camp knife. If your looking for a camp knife then step out and up to a R7. Now you have a much better do all around the camp. Keep the ESEE 4 or even better yet buy the R4

and let the wood chips fly. I love the R5, BUT to be honest and fair to you another knife within the same blade length zone so to speak is not the right way to go. Just my .02!!! I'm a Swamp Rat through and through from the R3 to the R9's, RMD, RS some M-Series and etc etc. The SR-101 is EXCELLENT steel and will take care of any chore going, period...
Good luck in your decision.
Here is a comparison shot of the R5 & R7