Kennedy all the way if you want a quality that will last you for years. Kennedy doesn't leak unless you drown it with juice, and has a deep juice well. Great flavor and volume of vapor. Kennedy 3post deck is not prohibitive imo. Shorty is a good mech mod but you have to be patient to adjust negative 510 contact and rubber o-ring switch may be questionable as time goes by. I would suggest you to look into Kennedy Roundhouse as well if you are looking for bulletproof high quality tube.Thank you manif you don't mind a 3 post black cap one, CSV still has them for dirt cheap with promo code SaveVaping
https://csvape.com/shop/rda/kennedy-vapor-kennedy-rda-v2/