hi steol5589
low reel casting was popularized by former tournament casting world champion, neil mckellow in the 80ths
by placing the reel low on a longer rod, neil discovered he could slow the cast down, build up more compression and gain considerable distance and advantage over his compeditors in tournaments, he went on to dominate tournament casting for a decade
what your essentially asking is whether you will have any difficulty with changing from high reel with the fixed spool to going low reel with a muliplier
the simple answer is absolutely not, in fact if you hav'nt done so already put the mulitplier low on the rod immediately and start from there
dont worry about release and control of the reel, its an immediate intuitive response, but the right arm has the freedom to really grip the rod, a big positive when directing the swing and punching the final follow-thru
give yourself a few hours practice, yet don't rush into it, don't concern yourself with distance - you'll get enough AND more of that later - take plenty of time and aim for smoothness and accuracy in your swing and technique
it may feel a little odd or akward at first but that should quickly evaporate until you will feel like you've always cast this way..!
then put the reel up high and cast..
the benefits of low reel should be numerous and glaringly obvious
if you don't find yourself instantly placing the reel back low permanently the reason can only be one of two things..
1) your doing everything completely wrong
or,
2) you could just be a natural born high reeler
expect a few birdnests initially if your unacquainted with the multiplier, its simply part of the process..