You're likely to get heaps of different opinions here Mate but with all the info you have & results you have got in the past, I wouldn't change anything. Look at the ring ends of the ones you've run, you'll see if they closed up & a leak down is the best way to check ring seal once it's setteled in.
The amount of fuel you get in the oil will also depend on how much boost you run, what your delivery system is & how fat you run it.
Mechanical injection & carbs are some fuel spilling bitches when it comes to Alky & liquid doesn't like to burn in the chamber so a lot of that wash will go past the rings, hurting ring seal & ending up in the oil.
Opening up the ring gap will only make it worse as you already understand.
Burn pattern on the pistons is a good indicator of what is going on in there, you should see if it's washing the intake side.
Are you checking EGTs?
The JE recomendation seems a little big to me too, is that maybe for blown gas?
Give us some more info on your setup, blow through, draw through, carb, injection, fire hose
???
Sid.