Oh man do I love modding DS1s. I have a pile of them in my collection that I’ve done all sorts of unholy experiments on in search of the perfect metal tone. Forgive me, however, as it was a while ago and I’m rusty. My suggestion is you head over to electrosmash and look up the analysis of the DS1 and see what those caps do. The different types (electro vs box) won’t have much effect, but swapping out the crappy ones it came with for better quality caps will show improvement. Or so I’ve heard. Let me know how you make out and if you want to dig any deeper than just the ASE and Ultra mods. I’ve found it needs some tweaks to the EQ section to really come alive. All super easy stuff to do!