An IMC only not in VERY current practice would be VERY stupid to attempt an approach beyond the 500/600ft recommendations In fact I would suggest even those are too low if you are not CURRENT.
You know what....I tend to disagree, seriously!
It doesn't matter how current you are, if you intercept the needles for an ILS and have a nice stabilized approach, keeping the needles centred, then any monkey can fly the approach. The difficult bit is knowing when to go missed and knowing that you have set everything else up properly (missed approach aids dialled in, brief for the missed, having a plan B!) and knowing when things are going wrong.
Believe it or not, instrument flying is not rocket science as some like to make out. I've held an IR since 2002 and there have been times when I have been "un-current", not legally but feeling. One thing I notice though is that the more instrument experience you have, the quicker currency comes back - a bit like riding a bike, if you're 40 years old and haven't ridden for 20 years, you'll feel a bit wobbly at first but not really dangerous, and it doesn't take long for it to come back. This equally applies to IR and IMCr holders......
Just my humble opionion of course.
