Laryngeal theory as an unnatural

In the standard Laryngeal theory, the following events are depicted

-The presense of some sounds called laryngeals

-The tuning of the laryngeals upon neighbour wovels. O-tuning, a-
tuning, e-tuning

-The loss of laryngeals, with accompanying legthening of the wovel
before the laryngeal.


In the theory of ablaut the following events are depicted:

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-Some time when unstressed short wovels disappared and long
unstressed wovels rendered a schwa-sound, thus creating the
quantitive ablaut.

-Some time when the wovel "e" was tuned to "o" or sometimes "a", thus
creating the qualitative ablut. Some scolars think this was effected
by tune accent patterns, other by neighbouring consonants.

-Some time when some wovels were lengthened, creating the lengthened
grade of the quantitive ablaut.

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It seems to me that these two theories could be combined, totally or
partly, rendering a theory of the following kind:

-Some time when unstressed short wovels disappeared and long
unstressed wovels rendered a schwa-sound, thus creating the
quantitive ablaut. In the presense of some consonants - espesially
laryngeals the process rendered a shwa-sound instead of zero-wovel
also from short wovels.

-Some time when the wovel "e" was tuned to "o" or sometimes "a", thus
creating the qualitative ablut. This was effected by neighbouring
consonants - some of wich were laryngeals.

-Some time when consonants in certain postitions disappared, some of
wich were laryngeals, others could be -n, -r or clusils in certain
positions.

-When the disapparing consonant was syllable-final, the preceeding
wovel was lengthened, creating the lengthened grade of the quantitive
ablaut.

Does anyone have an opinion upon this issue.