Spike uses 2 different milled soaps, one from Trumpers - http://www.trumpers.com/shop_detail.cfm
and the other is from Crabtree & Evelyn - http://store.crabtree-evelyn.co.uk/bin/venda?ex=co_wizr-xapian&bsref=crabtreeevelynuk&xptpl=wz_xapian_adva nced&ARG_DEFAULTOP=AND&searchfld=&searchpage=0&sea rchinvt=1&searchstry=0&searchicat=0&searchlike=1&t hreshold=50&searchcat=&carryfields=line%2CE%2Csort name%2Csortprice%2Csearchcat&srchopt=line%2CE%2Cso rtname%2Csortprice%2Csearchcat&E=&itemsperpage=10& perpage=10&searchex=shaving+soap
I use Mama Bears unscented soap for the more sensitive areas. I struggled getting a decent lather using a boar brush and have only really started getting better results since using my Silver Tip.