62T or 6m6 cylinder

[Cache450]

I ended up with a stock bore 62T cylinder and also a resleeved 6m6. so they are both 701 (81mm) is there any advantage to using one or the other as far as porting goes?

 

[Blue]

The ports are very small on the 6m6 use the 62t its better but a 61x is best for freestyle. 62T will work good for couches or blasters.