Here's another picture of the XPL-250 that I shot in a hurry.
The LE109 really is a one-off. Greg thought he used a "half-weight" 112H/2108H type cone and then made up the difference with aquaplas.
The 095Ti here is coated with aquaplas.
"If it's metal, coat it."
Substrate is irrelevent with respect to the question of "should I or shouldn't I coat it?".
Al, Ti, Be - coat it with aquaplas. It takes the "zing" out.
Very recently I noticed that statement had been amended.
"If it moves, coat it."
The 095Ti and 046Ti are a very difficult components to work with. They are very forward and the staggered baffles in the XPL Series are a must.
The L250/250Ti/XPL250 baffle also "works" due to the slope.