SVJ I can touch a 10' rim now. So I think I'm at 29.5". My RVJ is only about 3" better at most. Does that mean I have decent strength base and that I need to work on my jumping techniques more?
You can do different things with similar longterm outcomes. Even if you could profit from more power and reactivity training right now, you could also benefit from an increase in max strength because it will make a power block somewhere down the road more productive. It depends on many external factors, for example whether or not you are training for a competition or just for fun, whether you are in-season or off-season and similar considerations.
One thing I do believe is that it makes sense to utilize the novice phase for strength increases to its maximum potential with a rather heavy focus on maximal strength and some power work in form of powercleans and also powersnatches.
I don't believe that one can generally infer from the RVJ - SVJ - difference to a valid indication of training means without further information about individual variables that have an influence on this difference. For further information on this you should check out Kelly Bagget's website and articles.
In any instance, usually working on jumping
technique is not the answer - unless it is really horrible, which in fact I have been able to observe rather often in volleyball players, like using no arm swing, really uncoordinated approach, bad plant etc. Don't know if that is the case for you though, it's not like a 33" RVJ is terribly bad.
