Ultimately it can't hurt. Ive been using tube amps for the last 33 years and only plugged them into whatever outlet was handy. I've had no problems so far. That said, a surge protector at home or in the cables/pedals/stuff bag may not be the worst idea.
Like many I'm only playing at home at the moment. Very basic: Keeley modded Boss TR-2 tremolo in front of a Vox AC-10. That and whatever guitar of the day/week is the rig.
I had one back in aughts that kept having solder joint issues. Hopefully they're made a bit more robustly these days. I bought mine after using a friend's genuine '65 tank. They were quite similar. Sounded lush, all that good stuff. Don't expect it to be as robustly made as an amp head. I also...
My early Bassman 4x10 reissue. Solid wood cabinet was light weight. The polarity switch was actually in the circuit, which helped a few times in places with weird wiring.
I've tried to consign my RI Super Reverb for cheap ($450) and there were no takers. It's MINT! Well, its speakers got broken in at the store I consigned it to and I'm keeping it for the moment.
If I remember correctly the Duo-Sonic II "might" have had a toggle switch for the weak pickups. The toploading bridge was IMHO less of a headache than the vibrato. All in all, both were intended as student level guitars. I'm still in love with the neck on mine, just not so much the rest of it.
Whatever it is, it has to have the sustain sucking vibrato, weak pickups, and phase capable switching. Otherwise it's just some form of Duo Sonic. So there...;)...and I'm actually a fan of the model. I still have my comp orange '73 I bought in '79 for $170 with paper route money.
Side by side the old '60s Melody Maker pickups had noticeably more output than vintage Mustang pickups. Not that the MM pickups were especially amazing or anything.
Every time I pick one up I fall in love...for a little while. They are nicely designed, well made, high quality instruments. Once I get over the wow factor I find the necks too skinny and the pickups a bit bright. YMMV.
My '50s Classic that my brother gave me several years ago did that. The pickguard also darkened. As my brother never liked the guitar it spent most of its life in a cheap Fender gigbag. When I got it I put it in a hard case, but the color change had already happened by then. I'm thinking the...
I've been doing it for years and never had a problem. The '69 neck on my partscaster has been finishless since about '73 (I'm not that old, it came to me like that...) and it's still fine. Sand away! If your Squier becomes a rare collectible in your lifetime let me know and I'll pay up the...