The "Strong RSP" is actually a little deceptive... I actually find this not overly strong (probably due to so much use) but is drilled 4" with strong CG (thats what i meant by strong).
The battle should is far more agressive than the dulled RSP. My 2 RSPs are two of te best balls I've ever owned and were the foundation of the arsenal. The covers are so versatile, and I reckon if ater practising on the tournament patterns that the dulled RSP is too close to the Battle, I can polish it or at least sheen it to make a bigger gap between it and the Battle.
If I was going to a tournament were I might expect a heavy/medium/light pattern, I'd be right with you on the spread of the arsenal, but on the long/short format, and not a tonne of games on each oiling, I dont know how useful a medium pearl/solid reactive would be... When practising recently though on patterns for the event, I found that once my strongest ball stopped working, the Polished RSP from deeper was the best.
Ryan