JW,
The key is can you repeat what you are doing? There is no "right" way. There have been some awesome, PBA Tour Champions with terrible form (Ron Williams, Scott Devers, Rick Lawrence). But those guys are/were machines, they could repeat what they did naturally very well.
Four boards is not a lot. Four boards left if you are right handed is really pretty good. The modern bowling equipment will force you to walk left in order to play the pattern properly. You can't play 5th or 6th arrow as easily walking to the right.
Reread your last sentence, you have said it all.
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