Choice of capacitor

even better than the HTs are the copper foils and paper from Jupiter. Have used both, as well as the Duelands, and Jensen copper foils (Jensens are no longer available).  The Jupiter copper foils are more organic sounding. Original poster did not mention what amp they were putting these caps in. On some older gear with high GNFB, you may not hear as much of an improvement as you would on amps with lower feedback. 

I have Mundorf SESGO .47 caps on  each of the kt88's sockets. 
Thats 12X$50, cost me a fortune, but worth it. bass is more solid and extended. Nice nuances. 
The EVO silver gold are $25 but you will not get the same performance. 
My tech hates Mundorf botique caps, Most techs don't believe in botique caps. 
In some places they make a  nice nuance, in others miniscule  pop. 
Woofer section of speaker nice gains.

mundorfs sounded less dynamic and too veiled in my system. 
what caps do shindo amps use?

mundorfs sounded less dynamic

Can you tell which which M cap, as really the only ones to  use are SESGO  smaller values and Supreme SGO in large values
If you use EVO, = OK but not up to SESGO

My ears prefer the Jupiter HT vs copper, although the copper is more detailed, just not quite as musical. slightly slower sounding too