Suppose we want to say:
"In order that something doesn't move the glass, so that the coffee inside won't spill, a special base can be used".
One option is to write:
HIvje' vIHmoHbe'lu'meH, 'ej qa'vIn Qoy'moHbe'lu'meH, ngaDmoHwI' le' lo'lu'.
But I wonder.. Couldn't we use {vaj} instead of {'ej}?
HIvje' vIHmoHbe'lu'meH, vaj qa'vIn Qoy'moHbe'lu'meH, ngaDmoHwI' le' lo'lu'.
In the first option the exact meaning is "... and in order that the coffee doesn't spill", while on the second option the meaning is "... so that the coffee doesn't spill".
Granted, not much of a difference either way, but I wonder if there could be any argument against "joining" {-meH} clauses with {vaj}.