Depends...
How much do you want to spend ?
I was going to change the uniloc pin on my McDermott M901 to a 3/8x10 pin. The local cue repair guy wanted $50 to take the old uniloc pin out, fill the hole, then re-bore the hole and insert the new 3/8x10 pin.
(Note : He asked me to leave him whichever one of my 3/8x10 shafts I wanted to use as the primary shaft, so he could insure that the joints were flush. I would have never thought about leaving the shaft, but it makes sense in retrospect).
I ended up NOT changing the pin and selling that cue, but just the fact that HE brought up leaving the shaft to be sure it matched up ?? I take ALL my work to him now.
If you like the cue, and you've got a few extra beans, then why not ?
I'm guessing the Miller Lite cue has some sort of sentimental value. Don't let some hack try to change the pin. Ask around, and ask lots of questions.
Let us know which way you choose...