GA15 one is a small upgrade in theory (Bigger diameter) But you prolly wont notice it so no side effects. (CG10 and CG13 are the same if i remember correctly)
Got to think the last UK dizzy was sold in 2000 19 years ago , so a solder joint failing due to age ect isn't bad , and it's a serviceable part as Well
They made the dizzy March till 2008 I think ,and Tbh its a reliable set up really enough you forget how old it really is
Tbh its kinda better then then coil pack which isn't a wearable part and once failed has to be replaced, tho cheap enough at £22 for a maf