When I started with this mix I was growing rare ferns and another fern guy showed me the recipe. Very acidic and the pine bark helped make it even more so, but that's just what ferns love.they have promix with pine bark in it but i never see that type at the nursery's. only hp and bx. I am pretty sure that pine bark has properties that pure peat moss does not have so that should help to make a good soil.
As far as reusing , i think it will continue to get better because the peat and other organic matter gets broken down more and more until it is humus , just like WC and compost. eventually it will turn into a rich soil.
"cooking" the soil and reusing is probably the best thing to do no matter what. (for organics)
Found out about the lime right quick when I started growing other things.
The ferns didn't seem to mind, but with everything else, the more broken down it got, the better it worked.
Letting it cook or age really helps, but I've seen recently that adding the worm castings with all their good bacteria REALLY helps the process along.
Before I started my worm bin I was just adding the meals and that worked ok, but the castings made a big difference in it breaking down.
Wet