well the way I would tell you to look at it is this, are you happy with the accuracy you get with currect set up?
do you like how it holds the arrow
as all rests have pro's and con's
it comes down to what YOU like, more than anything
my opinion on drop away rest is this , say over say a wisker type rest is, they just have a LOT more moving parts , and as we all know anything that can move, can do just that
more parts, higher odds of a failure, or that's my opinion(not saying there not good, many are great rest)
I hunted with a drop away rest for almost 10 yrs, so I can say I liked mine, but it had its moments over the yrs I almost threw my bow
but that was a very early design, stopped bow hunting a few yrs back due to a back injury
but I still say if you were happy with what you had, why change?
once a yr to have to replace one part?? doesn't sound so bad to me
I will add this too
some claim that ice will freeze up them WB type rests, and all I can say to that is, well moving parts freeze too, so??? if ice will build on one, it will effect the other as well!