Nooo the same capital letter in each makes the domain name far easier to remeber. Rule one of a domain name. Make it memorable, either through association or by rhying ie pawsandclaws (first choice but gone) FeetandFins (double F) we did think or furandfins as well as about 50 others which we brainstoremd, then passed a list around asking people to look at for 30 seconds, then name some of them.