Your kits are currently missing 1800/CP, 65% and 660 compat because you decided not to include R1 End, R1 PgDn, R3 PgUp, R4 PgDn, R4 2.25u Shift in your base kit. Which is fine sometimes. However, you also forgot about the flip side of that coin and you didn't include them in any of the other kits either. Which is not fine, because now buyers literally don't have any way of getting the compat that they need.