Tilton/ tick performance

[KPC67]

Hi guys, been looking into the tick performance kit for my 02 camaro. It is a tilton master cylinder with 7/8ths bore, an adapter and new line. I am hoping it cures my issues of going into first and reverse. The car shifts fine but while sitting still it seems to take a little more effort going into these gears.
Anyone on here have any experience with this kit? seems to be the bees all ends all on any other forums I have looked into.
I was also thinking of buying one for my 67 over the wilwood clutch slave. Any reason not to?