I like to match the hilt and spacers to the handle material.
Brass Hilt and Black/Brass Spacers with the gold and brown materials.
Nickel Silver Hilt and Black/Aluminum Spacers with black, grey and white materials.
Should we select the handle material first and then the hilt and spacers?

Nickel Silver forward curved hilt with smooth nickel silver collar and domed butt with nickel silver material.
alabamafats #620

NS single hilt, red Spacers, stag,

Pap

I'm with David let's pick handle material first.

"IF" you pick the handle material 1st, that "could" predicate the "type" of metals. "IF" you chose the metals 1st. that "could" predicate the type of handle material. What's the difference? I think I'll just stick with what we've always done...start at the tip and work back.
FYI: I have made LB's with a FCH, both in NS "&" Brass, including matching butt caps. In "both" scenarios it made the knife "extremely" heavy in function. It's you build and I'll make it the way you want it..."BUT"...(There's that word again)...just sayin'
Stay Sharp, Capt. Chris
PS: Using all brass gives you the option of having a "thin & rounded" butt cap...not an available choice in nickel silver...CCS

On second thought
N/S1-Blk/Alum spcrs-shop supplied Maple handle

This is going to be nice.

NS2 - Nickel double

I'm liking "thin & rounded" brass butt cap.
Sorry Capt. wrong end to start.

Dennis

FYI...Food-4-thought??
I don't care what options we use...or not. Brass butt cap is an option (+) stainless= (2) used up, leaving "3". Is you want to match hardware (which seems to be the case), brass spacers makes (3). Optional handle material make (4), leaving only (1) remaining. If you go the nickel silver route, There would be "no options" left.
Chose wisely members...If you're thinking a special handle shaping, etc...every little "change" is important...
Let's here from y'all...and Happy New Year...BTW!
Stay Sharp,
Capt. Chris