VH-XXX,
I sincerely hope you and others don't consider these options:
Would you just zoom on through it knowing that you'll come out the other side shortly?
or
Just keep going into temporary IMC, not mention it and not worry as you're not going to hit anyone / anything because you're in CTA under the assumption you'll come out the other side?
I realise you didn't say that you did, however it concerns me that these may be options considered by VFR pilots. It's a great way to kill yourself.
There will be many times when you don't, but IFR ratings are issued for a reason. Perhaps the VFR aircraft you are flying is not IFR approved.
I assume you realise these options are not a safe path to take. Is it really such a big deal to contact ATC for tracking changes/climb/descent etc. I suggest that entry into IMC is a PAN or perhaps even MAYDAY for a VFR pilot - that'll get their attention.
Safe flying.
Joe Lighty