Hey there everyone in the vast R/C Universe cyber-info-network!

I am getting back into nitro slimers. I have been only flying electrics (Katana Mini, Mini Funtana, EFlite Yak, AeroWorks profile Sukhoi, etc) for a few years due to no nitro fields around. I have recently moved to San Antonio TX and now have flying fields!

After some research, I just placed an order for the 48" TMPro / OMP Katana V2 46 ARF. Now I am trying to decide on the engine setup. Sitting in the closet I still have a OS 40FX and a 46FX. I have also been looking at a OS 50SX, YS 63, Saito 72, Saito 82 but am concerned about the vibration of the four-strokes on the profile. Should I stick with my 46FX which has run great on everything I ever put it on? With a 12x4 APC?

I am looking for good climb out power but do not need the insane overpowered rocket out.

Thank you in advance for any opinions/personal experience with slimer profile set-ups.