heavily impaired by lyrics issues am I

To create scores I use a template into which 2 lyrics styles are specified (I replaced the XML smaller / greater than by parenthesis, to let that be shown here)

(TextStyle name="Lyrics odd lines")
(family)Times New Roman(/family)
(size)15(/size)
(bold)0(/bold)
(italic)0(/italic)
(underline)0(/underline)
(align)2(/align)
(offsetType)1(/offsetType)
(sizeIsSpatiumDependent)1(/sizeIsSpatiumDependent)
(xoffset)0(/xoffset)
(yoffset)7(/yoffset)
(rxoffset)0(/rxoffset)
(ryoffset)0(/ryoffset)
(/TextStyle)
(TextStyle name="Lyrics even lines")
(family)Times New Roman(/family)
(size)15(/size)
(bold)0(/bold)
(italic)0(/italic)
(underline)0(/underline)
(align)2(/align)
(offsetType)1(/offsetType)
(sizeIsSpatiumDependent)1(/sizeIsSpatiumDependent)
(xoffset)0(/xoffset)
(yoffset)7(/yoffset)
(rxoffset)0(/rxoffset)
(ryoffset)0(/ryoffset)
(/TextStyle)

However when the lyrics have been edited I find a whole array of styles, which in XML appears to have been specified for each note, such as, for instance

(Lyrics)
(syllabic)begin(/syllabic)
(tick)0(/tick)
(style)6(/style)
(html-data)
(html)(head)(meta name="qrichtext" content="1" /)(meta http-equiv="Content-Type" content="text/html; charset=utf-8" /)(style type="text/css")
p, li { white-space: pre-wrap; }
(/style)(/head)(body style=" font-family:'Times New Roman'; font-size:11.9906pt; font-weight:400; font-style:normal;")
(p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;")(span style=" font-size:9pt;")Ma(/span)(/p)(/body)(/html)
(/html-data)
(/Lyrics)
However when the lyrics have been edited I find a whole array of styles, which in XML appears to have been specified for each note, such as, for instance

(Lyrics)
(syllabic)begin(/syllabic)
(tick)0(/tick)
(style)6(/style)
(html-data)
(html)(head)(meta name="qrichtext" content="1" /)(meta http-equiv="Content-Type" content="text/html; charset=utf-8" /)(style type="text/css")
p, li { white-space: pre-wrap; }
(/style)(/head)(body style=" font-family:'Times New Roman'; font-size:11.9906pt; font-weight:400; font-style:normal;")
(p style=" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;")(span style=" font-size:9pt;")Ma(/span)(/p)(/body)(/html)
(/html-data)
(/Lyrics)

I have now a ready score, for which I am in some hurry, and would be pleased to find some global way to show lyrics in 15 size. I tried the "Apply a style" menu from a .mss file I made previously and which includes the same Lyrics styles definition as my template, it gave no result. I'll try now to edit the xml file, replacing the "9pt" by "15pt", since the abve Lyrics entry appears in size 9 under mscore.....

but if there is somme better solution......

Thanks.