Hi [...], me again.

Most of our members use the less expensive scales so I don't feel you need to purchase a new one unless it gives you greater comfort, some are okay with good enough, other people need more precision, its all about how you feel about it because if you're not confident then you'll worry and worry makes us feel worse.
I don't believe you'll need to use scales for awhile though, most will dry cut until their pills get too small or they need smaller reductions than they can achieve with cutting.
We typically recommend reducing your dose by about 5-10% every couple of weeks or whatever your symptoms dictate, they should guide you so you can stay functional.
Can you tell us which medication you feel has the longer half life, typically it would be the Diazepam but since you're not sure what you're taking, I'm unsure. Whichever is the shorter half life is the one you'll want to start tapering first.