The main problem with the coloured T cuts is that when you come round to polish again every bit of equipment will go that colour. Can be a pain sometimes.
 
But if i use the yellow t-cut will it help?
if i

Wash
claybar
T-cut
Polish
wax
?

If you want to remove the oxidisation and lift the paint just use a good polish, the t-cut won't add anything IMO, especially in the sequence you have listed as the polish will then remove anything the t-cut managed to leave behind anyway.
 
If you're doing it by hand try something like SRP or Carlack AIO. If you have the T-cut, try each on the bonnet and see what difference it makes visually. The Tcut in my eyes is a polish anyway so use it along with other polishes to test, not before or after.

A good going over with any polish should sort it out. Wax doesn't add a lot to the finish, its all in the prep work. The wax is like the icing on the cake. I'm sure Rubbish boy can sort you out in the department.
 
So Just want to even out the colours on the panels...

So the yellow t-cut wont add any colour

What did you get in the end mate?

I too, have a onvi Ibiza Cupra. I'm wanting to give the panels some attention, to try and remove some oxidation and bring back the brighter yellow colour.

I've been using T-Cut in the past, but i feel i need something stronger, something more abrasive maybe?

Just read this whole thread, Carlock AIO or SRP seems to be product i need?Am i right?
 
i got the megs full stage 1,2,3 and Clay bar and the results are mint :D

pics
yellowcopy.jpg

IMG_0183.jpg

IMG_0175.jpg

IMG_0176.jpg

IMG_0164.jpg


ive been doin it 3 times a month and it slowly gettin there..i know it wont be 100% but its a start