If you go to the custom controls section, you can disable the tap jump which can help you to avoid a third motion (Tilt - Hold -Jump).
You can also attempt to hold the analog stick in one direction while using the C-Stick (Only works vertically, so no side tilts will work like this)
But overall, if you're looking to make that transition altogether, you will need to focus on reading and timing.
***
In most cases, tilts will work best in planning and anticipation. Planning meaning that you are deliberately aiming to make it happen as your initial string start up. Anticipation meaning that while reading your opponents attacks, you respond accordingly.
***
You've got to think of it of less of a scramble to perform and more of an opportunity to establish your boundaries. You're "sphere of influence" as I like to call it, is the zone of which your attacks are effective. Study those zones. If you are able to read your opponent's moves you can easily clear your sphere of influence of them using a tilt.
+I recommend working with trips first aka D-tilts. After jabbing (neutral A) or specials work that into a string.
Tap A --> Hold Analog Stick down --> tap A again [TRIP]
+Up tilts work really well after jumps as your landing frames conceals your strategy; especially since most players seek out jumping frames as a vulnerability point. This is what some people might call 'leading'.
+Forward tilts are number two in obviousness right behind up tilts. Standing still, your motions are can easily be read. In a scuffle, its likely that you will mash too hard and end up using a smash attack. Both areas have the tech boundary of vulnerability, which no one is excited about.
Forward tilts work well after using your sheild. If anything, the sheild halts your momentum after motions, so it saves you the extra precaution of running into an attack. Of course using projectiles or specials help to clear your vulnerability, however as long as you are in range, you can be attacked or grabbed. Be patient and wait for the opportunity.
BLOCK --> KNOCK
Keep at like you said, and you'll do fine.
