Nope, and a sure sign of a lack of experience with same, trust me - with spring power a 5½ft/lb'er will be unpleasant to cock, be un-naturally large in size, and will be heavy to contain the powerful spring it will require.
With CO2 it will be bloody loud in unsilenced form attracting unwanted attention, it will probably require an overly long barrel as well.
Both will also be probably inaccurate due to a combination of the above.
There is a 'macho' obsession with power amongst the uninformed - as for the HW45 it is seldom as powerful as people think they are, its over-sized, top heavy, diesels like a pig and the dual-power is a silly gimmick as the point of impact is so different.
However it is reasonably well made.
But if you're actually a shooter rather than a talker, you'll quickly tire of the power and yearn for the ability to actually put the pellet wher you want it go rather than having the most powerful near-miss or 'flyer' as you'll quickly call them