Does anybody know what form factor those PBT keys from E-Sports Entertainment are? Like... whether they are Filco/DAS/Leopold ones, or Cherry, or Model M, etc. The reason I'm asking is because I want to replace the F and J from one of those engraved sets with red keys and I can only do that if I know what the form factor of the keys are so that I can get an exact match. Would KBC PBT's work as replacement? Doubleshots?