Yea if you want easy peasy hassle free with little to do but charge n fly than go with brushless wonders with great output and light weight solid service.
If you want to be more mechanical in nature then ode to the engine whisperer - your reward is four humming engines syncing in tune off the deck and over the pea patch she goes ticking away like no other. Windex and paper towel is your friend or exhaust diverters.
.061's should be ok just tach them all to a easy max carry plenty fuel on board, set the low end air bleeds and throws to give you same low tach readings and enjoy!