Sorry to pull up an old thread but I know this is something people still have questions about. I have an early deliverance cab with p50es as well as a newer one with f70g. I’ve now played them both extensively through my Bogner heads. The easiest comparison is playing style, if you like djent or fast metal riffs, go with the p50e, it has quicker attack, my uber ultra loves them. If you play a lot of cleans in alternative rock then the f70g is better, it’s a looser more forgiving speaker but it also has much more clarity than the p50e, not in an articulation sort of way but in the sense that the f70g is less colored. Hope this helps someone decide