Waddle & Levis - please recommend X-Factor and Abilities

Hi,

I got lucky and pulled Waddle Ltd out of a pack and I also built the Levis set.

I am a bit overwhelmed (in general) with all the different X-Factor Abilities and Tier Abilities. 

What are your recommendations how to upgrade these two cards? I got enough Upgrade tokens to max them both out.

For Levis I'd like to Gunslinger XF and maybe Gift-Wrapped. Obviously Gunslinger for Player-specific Abilities but that will cost me 4AP. That is an issue as this leaves nothing for the rest of the offense. I'm also not sure if Player-specific Gunslinger "overwrites" Gunslinger XF?

For Waddle I'm not sure at all. I was thinking Double Me XF for X-Factor and maybe Red Zone Threat (which will cost 3AP) for Player-specific?

I like to hear your thoughts. Thank you! :)