Hi Phil,
I am using the Proline 8228 rear and 8227 front on the AERO. (at the moment I am talking about the AERO only, but for the KF I have the same issue).
These tyres are "more or less" the same (by dimension) as the mini pin yellow. It even seems, that they are a bit "more flat" than the mini pins.
See, I am preparing both cars for the EOS round 2 in Berlin on 15.01 - 17.01. And these tyres are "given". As set up for the AERO I am using the setup from Tom of the MCCD christmas race, and for the KF I use the setup sheet from Tom of the EOS round 1.
Today I have no inspiration to work on my cars

, but tomorrow I will shorten the ball gripper by another mm. I have measured: the thread on the piston rod is 6mm long, the thread in the gripper can be 7mm.
This is all, what I can do....... Maybe I will add a 2mm spacer in the shock to reduce droop. At least the AERO tend to "grip roll" on the carpet surface (but we cut the outer line of pins rear and the 2 outer lines front, this mostly reduced grip roll).
Maybe I will go for a tool to tap the tread on the pistons by another 2mm and then, shorten them by these 2mm (I dislike to have spacers in the shocks).
Don`t get me wrong, I raced both cars on 27.12 and 28.12 on different surfaces and my son was very, very happy with them.

We own the SX, the SXII and the SXIII, but these two new cars are the best to drive directly "out of the box".

But these little details will improve satisfaction
As oil i am using the "original" Schumacher oil.
Thx for all suggestions