background, been playing tennis for 20+ years. never played high school because I preferred baseball and other sports. still play(ed) well and competed with guys who played organized tennis. flash forward, I played 4.0 usta (self rated) singles & dubs last season. Year before that played 4.0 dubs only. decided to take my tennis game more seriously and have been putting in a lot of practice time. where i find the practice has paid off the most is my serve. I was having to grind out wins and losing matches because I could only get my 1st serve in, on a good day, 50%. this past summer season I landed my first serve somewhere in the 75% range and won every match (12 matches). the captain of my clubs 4.5 team asked me to play as a sub (singles & dubs) on his team while still playing 4.0 full-time. I practiced with a few of the 4.5 guys and in just rallying these guys were controlling the play. played a practice tiebreak and I beat one of them lost by a point to the other because my serve was able to force them in to weak shots. Do you ever so knowledgeable posters of TT think it will help or hurt my game to play at a higher level when only one part of my game that works well on said level?