strawberries, stolons, and daughter plants

i read in a gardening forum recently that everbearing strawberries do not produce as many runners as june bearing ones do because they use more energy producing fruit...well...june bearers may produce more stolons but the one i trimmed today ( a marked slowdown, admittedly )makes eighteen in the last three weeks alone that i have taken out...add to that the fact that there are at least eight runners in the second photo and that the bed in the third started the season with twelve plants and now is home to twenty-nine ( no more! please! ) and i get the impression that everbearers are not slouches at reproduction...we will be thinning out the population in the spring but the addition of seventeen plants does not seem to have had an impact on production...i promised the haul in the bottom photo to my granddaughter ( well, actually to my daughter for her daughter...lots of daughters in this post ) but there will certainly be more as there are at least twice as many green berries on the plants right now...the garden is having a good season.