Are they any good for upgrading?
They have a larger tube and the switch looks quite robust. Another thing is the switch is completely serviseable and may have less resistance than the newer model.
Billy
The old ones have a far more robust switch. Just shove 4 alkalines side by side into it and see if it fits.
I'll trade you a brand new in the package new model for yours :thumbsup: lol
j/k, I would do the rop low like others have suggested, that way you're taking it easy on the switch. they may be a little harder to find than the newer ones.