I use 130/110W philips in the left headlight and 100/90 halonix in right. On highways I flash beams, and many times high and low come on together.
But unless you do it very very frequently there will not be an issue.
In the past 2 years I have had just one high beam blow.
Since in married2speed's case, this tube blowout is happening while flashing, it looks to be a relay wiring problem, with terminals fouled up.
Good quality relays come with a wiring diagram, so check that out and see if matches.
I know a good electrician in Noida, if you want his contact PM me.
He will check your car's entire wiring.
You can get halonix 100/90 from noida itself and try it out too.
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